ASTM F2748-15(2019)
(Specification)Standard Specification for Airsoft Guns
Standard Specification for Airsoft Guns
SCOPE
1.1 This specification covers airsoft guns which propel a projectile by means of energy released by compressed gas, compressed CO2, mechanical springs, battery or a combination thereof, used in the sport commonly called airsoft or air soft, and is to be used in conjunction with Specification F2654.
1.2 Limitations—This specification does not cover the following types of products: Non-powder guns as specifically defined in Consumer Safety Specification F589 and which are commonly referred to as BB or pellet guns; paintball markers as specifically defined in Specification F2272; toy products; and non-recreational air guns, for example, those used by law enforcement, scientific, military, industrial, or theatrical entities.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Designation:F2748 −15 (Reapproved 2019)
Standard Specification for
Airsoft Guns
This standard is issued under the fixed designation F2748; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Toperformasintended,anairsoftgunrequiresalevelofpowerwhich,ifmisused,cancauseserious
injury. This specification is intended to reduce the hazards associated with airsoft gun use. This
specification cannot control careless use or eliminate all hazards of misuse. Terminology is
standardized in this specification, so that conforming products will be identified in the same manner,
and critical dimensions are standardized to assure safe interchangeability of projectiles in all
conforming airsoft guns. Product performance hazards are identified and requirements are established
tominimizethesehazards.Thisspecificationiswrittenwithinthecurrentstate-of-the-artofairsoftgun
technology. The intent is to revise this specification whenever substantive information becomes
available which justifies revising existing requirements or adding new requirements.
1. Scope ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 This specification covers airsoft guns which propel a
mendations issued by the World Trade Organization Technical
projectile by means of energy released by compressed gas,
Barriers to Trade (TBT) Committee.
compressed CO , mechanical springs, battery or a combination
thereof, used in the sport commonly called airsoft or air soft,
2. Referenced Documents
and is to be used in conjunction with Specification F2654.
2.1 ASTM Standards:
1.2 Limitations—This specification does not cover the fol-
F589 Consumer Safety Specification for Non-Powder Guns
lowing types of products: Non-powder guns as specifically
F2272 Specification for Paintball Markers
defined in Consumer Safety Specification F589 and which are
F2654 Specification for Airsoft Gun Warnings
commonly referred to as BB or pellet guns; paintball markers
F2679 Specification for 6 mm Projectiles Used with Airsoft
as specifically defined in Specification F2272; toy products;
Guns
and non-recreational air guns, for example, those used by law
2.2 Code of Federal Regulations:
enforcement, scientific, military, industrial, or theatrical enti-
15 CFR 1150 Marking of Toy, Look-Alike and Imitation
ties.
Firearms
1.3 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
3. Terminology
conversions to SI units that are provided for information only
3.1 Definitions of Terms Specific to This Standard:
and are not considered standard.
3.1.1 airsoft gun, n—commonly referred to as airsoft gun,
1.4 This standard does not purport to address all of the
air soft gun, or soft air gun, or any combination thereof, or a
safety concerns, if any, associated with its use. It is the
low energy air gun (LEAG), refers to a device specifically
responsibility of the user of this standard to establish appro-
designed to expel a projectile as described in Specification
priate safety, health, and environmental practices and deter-
F2679, by the release of energy by compressed air, compressed
mine the applicability of regulatory limitations prior to use.
gas, mechanical springs, battery, or a combination thereof.
1.5 This international standard was developed in accor-
dance with internationally recognized principles on standard-
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
This specification is under the jurisdiction ofASTM Committee F08 on Sports contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Equipment, Playing Surfaces, and Facilities and is the direct responsibility of Standards volume information, refer to the standard’s Document Summary page on
Subcommittee F08.27 on Airsoft. the ASTM website.
Current edition approved May 15, 2019. Published June 2019. Originally AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
approved in 2008. Last previous edition approved in 2015 as F2748 – 15. DOI: 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
10.1520/F2748-15R19. www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F2748−15 (2019)
3.1.2 airsoft gun projectile, n—spherical, of 6 mm (.24 cal) on/off switch is considered a safety device when placing it in
diameter, non-metallic and non-liquid filled projectile to be the “off” position renders the airsoft gun inoperable.
usedinanairsoftgunasspecificallyreferredtoinSpecification
3.1.18 standard ambient temperature and pressure (SATP),
F2679.
n—used to describe a substance at the pressure of 1 bar
3.1.2.1 Discussion—These are also referred to as airsoft
(1.01325 atmospheres, 750 mm Hg, 14.5 psi, 100 kPa) and a
BB’s.
temperature of 25°C (77°F).
3.1.3 backstop, n—object intended to stop an airsoft gun
3.1.19 target, n—object at which the airsoft gun is dis-
projectile.
charged.
3.1.4 barrel, n—thatportionofanairsoftgunthroughwhich
3.1.20 trigger, n—device operated by the user to discharge
the projectile is discharged.
an airsoft gun.
3.1.5 cocking, v—action that allows the user to store manual
3.1.21 trigger guard, n—rigid, firmly attached component
energy.
that must totally enclose the trigger area and be wider than the
3.1.6 hammer, n—device which, when released, discharges
trigger.
the stored energy.
3.1.21.1 Discussion—There can be no more than 38 mm
(1.5 in.)ofspacefromanypointonthefaceofthetriggertothe
3.1.7 hop-up, n—devicethatchangesthespinonaprojectile
trigger guard, and no more than 13 mm (0.5 in.) from the
to affect its trajectory.
lowest point of the trigger to the trigger guard. All measure-
3.1.8 magazine, n—device used in an airsoft gun to store
ments under this rule are to be taken after excluding any
projectiles.
removable attachments to the trigger.
3.1.9 propulsion system, combination, n—propulsion sys-
3.1.22 trigger pull, n—force required to move the trigger
tem in which a combination of spring, spring-piston,
from its start or recycle/reset position to a position that
pneumatic, or gas systems can be used to provide the energy to
discharges the airsoft gun.
propel the projectile.
3.1.10 propulsion system, electronic, n—propulsion system
4. Significance and Use
in which an electronic system is used to provide the energy to
4.1 This specification establishes performance requirements
propel the projectile.
and test methods for airsoft guns.
3.1.11 propulsion system, gas, n—propulsion system in
which a gas system, including CO , is used to provide the
5. Conformance
energytopropeltheprojectile.CO propulsionsystemisatype
5.1 Airsoft guns shall not, either by label or other means,
of gas propulsion system.
indicate conformance with this specification unless, at the time
3.1.12 propulsion system, spring-piston (also known as
of manufacture, they conform with all applicable requirements
spring-air), n—propulsion system in which the projectile is
contained herein.
propelled by air pressure that is created by a piston moved by
a spring.
6. General Requirements
3.1.13 propulsion system, pneumatic, n—propulsion system
6.1 Literature—Each airsoft gun shall include the product
in which compressed air is stored under pressure and, when
literature as specified in Specification F2654.
released, provides the energy to propel the projectile.
3.1.13.1 Discussion—Apneumatic airsoft gun normally has
6.2 Packaging—The packaging of each airsoft gun shall
a pump system to provide the compressed air.
comply, as applicable, with Specification F2654.
3.1.14 propulsion system, pre-charged pneumatic,
6.3 Product Marking—Airsoft guns shall be marked in
n—propulsion system in which the energy is provided by
accordance with Specification F2654.
compressed gas, normally compressed air, stored in a refillable
6.4 Finish—The exposed edges of all airsoft guns shall be
cylinder charged by an external source.
smooth and free of sharp edges, burrs, and splinters.
3.1.14.1 Discussion—The release of the compressed gas
provides the energy to propel the projectile.
6.5 Shipping:
6.5.1 Each airsoft gun shall be shipped in an unloaded,
3.1.15 pumping mechanism (pneumatic gun),
uncharged, and uncocked condition.
n—mechanical device used to compress air.
6.5.2 All airsoft guns must shoot at an energy level under
3.1.16 range, n—maximumdistancetowhichanobjectmay
2.9 joules at the time of shipment at SATP.
be propelled, whether limited by energy or an obstacle.
6.6 Design:
3.1.17 safety device, n—device which, when activated, dis-
6.6.1 All airsoft guns with an exposed trigger shall have a
ables a part of the airsoft gun, usually the trigger, to prevent
unintentional discharges and must be released to allow the trigger guard.
airsoft gun to be discharged by the movement of the trigger. 6.6.2 It is the responsibility of the manufacturer to deter-
3.1.17.1 Discussion—Thedeviceissometimesreferredtoas mine whether federal markings are required on its airsoft guns
the “safety,” “safety button,” or “safety lever.” An electronic and to follow all applicable regulations (see 15 CFR 1150).
F2748−15 (2019)
7. Performance Requirements 8.2.2.2 Projectiles conforming to Specification F2679 and
manufacturer’s recommended propellants.
7.1 Airsoft Gun Function—Cocking, pumping, loading, or
8.2.2.3 Appropriate back stop.
charging of an airsoft gun shall not cause the airsoft gun to
8.2.3 Test Specimen—The test specimen shall consist of a
discharge except in accordance with the manufacturer’s in-
new airsoft gun, selected in accordance with the manufactur-
structions. This does not limit the use of “auto-triggers.”
er’s usual quality assurance practices.
7.2 Safety Device—Safety devices shall be provided on all
8.2.4 Procedure:
airsoft guns and all such devices can be activated whether or
8.2.4.1 Conductthetestatroomtemperature(60to80°F(16
not the airsoft gun is cocked. All such devices shall be clearly
to 27°C)).
marked to indicate the “safe” and “fire” or “on” and “off”
8.2.4.2 Insert the manufacturer’s recommended propellant
positions, or an indicator on the safety device which exposes
(if required) and load the projectile magazine or chamber of an
botharedcolorandagroovewhentheairsoftgunisinthe“fire
airsoft gun to capacity.
position.” All such devices shall be capable of preventing the
8.2.4.3 Operate the airsoft gun in accordance with the
airsoft gun from being discharged when a weight of 9.1 kg (20
manufacturer’s instructions. Test fire the airsoft gun until all
lb) is applied to the trigger. Tests shall be conducted in
the projectiles have been discharged. Reload the airsoft gun, if
accordance with 8.3.
required, and continue to fire until a minimum of 100 projec-
7.3 Accidental Discharge—Airsoftgunsshouldnotacciden-
tiles have been discharged.
tally discharge when exposed to a drop in accordance with 8.4.
8.2.4.4 If an airsoft gun has variable functions (power,
hop-up, mode, etc.) test the airsoft gun with at least 10
7.4 Trigger Mechanism—The weight applied to the trigger
projectiles for each of the possible combination of such
necessary to fire an airsoft gun shall be more than 1 6 0.05 lb
variables.
(0.45 60.09kg)weightandlessthan16 60.20lb(7.3 60.09
8.2.4.5 The airsoft gun passes the test if no discharge of a
kg). Tests shall be conducted in accordance with 8.5.
projectile occurred except in accordance with manufacturer’s
7.5 Barrel Diameter Size—The barrel diameter (excluding
instructions.
hop-up mechanism) of an airsoft gun must be no less than the
8.3 Safety Device Test:
maximum size of projectile designed for that airsoft gun (for
example, 6 mm for an airsoft gun which will shoot 6 mm 8.3.1 Significance—This method determines if the safety
projectiles).
device will withstand a 9.1 kg (20 lb) applied weight without
failure, causing the airsoft gun to discharge.
7.6 Structural Integrity Requirement for Airsoft Guns Using
8.3.2 Apparatus—A trigger weight system having a 9.1 6
CO Propulsion Systems—Airsoft guns using CO propulsion
2 2
0.02 kg (20 6 0.05 lb) weight. Arrange the weight system so
systems shall be constructed to prevent the full or partially
that the weight can be picked up by the trigger of the airsoft
filled CO cylinder from being propelled from the gun while
gun with the airsoft gun in a vertical position, muzzle up. (A
the cylinder is being emptied, installed, or removed.
spring gauge, capable of measuring the trigger force, can be
7.7 Temperature Test for Airsoft Guns Using CO Propul-
used instead of weight system.)
sion Systems—Airsoft guns using CO gas propulsion systems
8.3.3 Test Specimen—The test specimen shall consist of a
shall be capable of retaining the CO and the cylinder in a
new airsoft gun, selected in accordance with the manufactur-
pierced state when both are heated to a temperature of 160 6
er’s usual quality assurance practices.
5°F (71 6 2.7°C) and maintained for ⁄2 h without structural
8.3.4 Procedure:
failure of the airsoft gun. Tests shall be conducted in accor-
8.3.4.1 Conduct the test at SATP.
dance with 8.6. Seal failure between the airsoft gun and
8.3.4.2 Conduct all tests without projectiles in the airsoft
cylinder is acceptable.
gun.
7.8 Muzzle Energy—Airsoft guns shall have a muzzle en-
8.3.4.3 Place safety device in “safe” position or the elec-
ergyof2.9jouleorless.Testsshallbeconductedinaccordance
tronic switch in the “off” position.
with 8.8.
8.3.4.4 Apply a 9.1 kg (20 lb) load at the center point of the
trigger for 20 s with the load applied to the center of the face
8. Test Methods
of the trigger and remove the load.
8.3.4.5 Put safety device in the “fire” position or the
8.1 No precision statement on any of the following test
electronic switch in the “on” position.The airsoft gun must not
methods is available at this time.
discharge as the safety is disengaged.
8.2 Airsoft Gun Function Test:
8.3.4.6 Test the airsoft gun for proper trigger and safety
8.2.1 Significance—This method is performed to ensure that
device action.
the airsoft gun, when operated in accordance with the manu-
8.3.4.7 The airsoft gun passes the test if it withstands the
facturer’s operating instructions, will not discharge except in
load applied without causing it to discharge during the appli-
accordance with the manufacturer’s instructions during
cation of the load and does not discharge upon the disengage-
cocking, pumping, loading, and charging.
ment of the safety
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F2748 − 15 F2748 − 15 (Reapproved 2019)
Standard Specification for
Airsoft Guns
This standard is issued under the fixed designation F2748; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
To perform as intended, an airsoft gun requires a level of power which, if misused, can cause serious
injury. This specification is intended to reduce the hazards associated with airsoft gun use. This
specification cannot control careless use or eliminate all hazards of misuse. Terminology is
standardized in this specification, so that conforming products will be identified in the same manner,
and critical dimensions are standardized to assure safe interchangeability of projectiles in all
conforming airsoft guns. Product performance hazards are identified and requirements are established
to minimize these hazards. This specification is written within the current state-of-the-art of airsoft gun
technology. The intent is to revise this specification whenever substantive information becomes
available which justifies revising existing requirements or adding new requirements.
1. Scope
1.1 This specification covers airsoft guns which propel a projectile by means of energy released by compressed gas, compressed
CO , mechanical springs, battery or a combination thereof, used in the sport commonly called airsoft or air soft, and is to be used
in conjunction with Specification F2654.
1.2 Limitations—This specification does not cover the following types of products: Non-powder guns as specifically defined in
Consumer Safety Specification F589 and which are commonly referred to as BB or pellet guns; paintball markers as specifically
defined in Specification F2272; toy products; and non-recreational air guns, for example, those used by law enforcement, scientific,
military, industrial, or theatrical entities.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
F589 Consumer Safety Specification for Non-Powder Guns
F2272 Specification for Paintball Markers
F2654 Specification for Airsoft Gun Warnings
F2679 Specification for 6 mm Projectiles Used with Airsoft Guns
2.2 Code of Federal Regulations:
15 CFR 1150 Marking of Toy, Look-Alike and Imitation Firearms
This specification is under the jurisdiction of ASTM Committee F08 on Sports Equipment, Playing Surfaces, and Facilities and is the direct responsibility of
Subcommittee F08.27 on Airsoft.
Current edition approved April 1, 2015May 15, 2019. Published April 2015June 2019. Originally approved in 2008. Last previous edition approved in 20142015 as
F2748 – 14.F2748 – 15. DOI: 10.1520/F2748-15.10.1520/F2748-15R19.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F2748 − 15 (2019)
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 airsoft gun, n—commonly referred to as airsoft gun, air soft gun, or soft air gun, or any combination thereof, or a low
energy air gun (LEAG), refers to a device specifically designed to expel a projectile as described in Specification F2679, by the
release of energy by compressed air, compressed gas, mechanical springs, battery, or a combination thereof.
3.1.2 airsoft gun projectile, n—spherical, of 6 mm (.24 cal) diameter, non-metallic and non-liquid filled projectile to be used
in an airsoft gun as specifically referred to in Specification F2679.
3.1.2.1 Discussion—
These are also referred to as airsoft BB’s.
3.1.3 backstop, n—object intended to stop an airsoft gun projectile.
3.1.4 barrel, n—that portion of an airsoft gun through which the projectile is discharged.
3.1.5 cocking, v—action that allows the user to store manual energy.
3.1.6 hammer, n—device which, when released, discharges the stored energy.
3.1.7 hop-up, n—device that changes the spin on a projectile to affect its trajectory.
3.1.8 magazine, n—device used in an airsoft gun to store projectiles.
3.1.9 propulsion system, combination, n—propulsion system in which a combination of spring, spring-piston, pneumatic, or gas
systems can be used to provide the energy to propel the projectile.
3.1.10 propulsion system, electronic, n—propulsion system in which an electronic system is used to provide the energy to propel
the projectile.
3.1.11 propulsion system, gas, n—propulsion system in which a gas system, including CO , is used to provide the energy to
propel the projectile. CO propulsion system is a type of gas propulsion system.
3.1.12 propulsion system, spring-piston (also known as spring-air), n—propulsion system in which the projectile is propelled
by air pressure that is created by a piston moved by a spring.
3.1.13 propulsion system, pneumatic, n—propulsion system in which compressed air is stored under pressure and, when
released, provides the energy to propel the projectile.
3.1.13.1 Discussion—
A pneumatic airsoft gun normally has a pump system to provide the compressed air.
3.1.14 propulsion system, pre-charged pneumatic, n—propulsion system in which the energy is provided by compressed gas,
normally compressed air, stored in a refillable cylinder charged by an external source.
3.1.14.1 Discussion—
The release of the compressed gas provides the energy to propel the projectile.
3.1.15 pumping mechanism (pneumatic gun), n—mechanical device used to compress air.
3.1.16 range, n—maximum distance to which an object may be propelled, whether limited by energy or an obstacle.
3.1.17 safety device, n—device which, when activated, disables a part of the airsoft gun, usually the trigger, to prevent
unintentional discharges and must be released to allow the airsoft gun to be discharged by the movement of the trigger.
3.1.17.1 Discussion—
The device is sometimes referred to as the “safety,” “safety button,” or “safety lever.” An electronic on/off switch is considered
a safety device when placing it in the “off” position renders the airsoft gun inoperable.
3.1.18 standard ambient temperature and pressure (SATP), n—used to describe a substance at the pressure of 1 bar (1.01325
atmospheres, 750 mm Hg, 14.5 psi, 100 kPa) and a temperature of 25°C (77°F).
3.1.19 target, n—object at which the airsoft gun is discharged.
3.1.20 trigger, n—device operated by the user to discharge an airsoft gun.
3.1.21 trigger guard, n—rigid, firmly attached component that must totally enclose the trigger area and be wider than the trigger.
F2748 − 15 (2019)
3.1.21.1 Discussion—
There can be no more than 38 mm (1.5 in.) of space from any point on the face of the trigger to the trigger guard, and no more
than 13 mm (0.5 in.) from the lowest point of the trigger to the trigger guard. All measurements under this rule are to be taken
after excluding any removable attachments to the trigger.
3.1.22 trigger pull, n—force required to move the trigger from its start or recycle/reset position to a position that discharges the
airsoft gun.
4. Significance and Use
4.1 This specification establishes performance requirements and test methods for airsoft guns.
5. Conformance
5.1 Airsoft guns shall not, either by label or other means, indicate conformance with this specification unless, at the time of
manufacture, they conform with all applicable requirements contained herein.
6. General Requirements
6.1 Literature—Each airsoft gun shall include the product literature as specified in Specification F2654.
6.2 Packaging—The packaging of each airsoft gun shall comply, as applicable, with Specification F2654.
6.3 Product Marking—Airsoft guns shall be marked in accordance with Specification F2654.
6.4 Finish—The exposed edges of all airsoft guns shall be smooth and free of sharp edges, burrs, and splinters.
6.5 Shipping:
6.5.1 Each airsoft gun shall be shipped in an unloaded, uncharged, and uncocked condition.
6.5.2 All airsoft guns must shoot at an energy level under 2.9 joules at the time of shipment at SATP.
6.6 Design:
6.6.1 All airsoft guns with an exposed trigger shall have a trigger guard.
6.6.2 It is the responsibility of the manufacturer to determine whether federal markings are required on its airsoft guns and to
follow all applicable regulations (see 15 CFR 1150).
7. Performance Requirements
7.1 Airsoft Gun Function—Cocking, pumping, loading, or charging of an airsoft gun shall not cause the airsoft gun to discharge
except in accordance with the manufacturer’s instructions. This does not limit the use of “auto-triggers.”
7.2 Safety Device—Safety devices shall be provided on all airsoft guns and all such devices can be activated whether or not the
airsoft gun is cocked. All such devices shall be clearly marked to indicate the “safe” and “fire” or “on” and “off” positions, or an
indicator on the safety device which exposes both a red color and a groove when the airsoft gun is in the “fire position.” All such
devices shall be capable of preventing the airsoft gun from being discharged when a weight of 9.1 kg (20 lb) is applied to the
trigger. Tests shall be conducted in accordance with 8.3.
7.3 Accidental Discharge—Airsoft guns should not accidentally discharge when exposed to a drop in accordance with 8.4.
7.4 Trigger Mechanism—The weight applied to the trigger necessary to fire an airsoft gun shall be more than 1 6 0.05 lb (0.45
6 0.09 kg) weight and less than 16 6 0.20 lb (7.3 6 0.09 kg). Tests shall be conducted in accordance with 8.5.
7.5 Barrel Diameter Size—The barrel diameter (excluding hop-up mechanism) of an airsoft gun must be no less than the
maximum size of projectile designed for that airsoft gun (for example, 6 mm for an airsoft gun which will shoot 6 mm projectiles).
7.6 Structural Integrity Requirement for Airsoft Guns Using CO Propulsion Systems—Airsoft guns using CO propulsion
2 2
systems shall be constructed to prevent the full or partially filled CO cylinder from being propelled from the gun while the cylinder
is being emptied, installed, or removed.
7.7 Temperature Test for Airsoft Guns Using CO Propulsion Systems—Airsoft guns using CO gas propulsion systems shall
2 2
be capable of retaining the CO and the cylinder in a pierced state when both are heated to a temperature of 160 6 5°F (71 6
2.7°C) and maintained for ⁄2 h without structural failure of the airsoft gun. Tests shall be conducted in accordance with 8.6. Seal
failure between the airsoft gun and cylinder is acceptable.
7.8 Muzzle Energy—Airsoft guns shall have a muzzle energy of 2.9 joule or less. Tests shall be conducted in accordance with
8.8.
8. Test Methods
8.1 No precision statement on any of the following test methods is available at this time.
8.2 Airsoft Gun Function Test:
F2748 − 15 (2019)
8.2.1 Significance—This method is performed to ensure that the airsoft gun, when operated in accordance with the
manufacturer’s operating instructions, will not discharge except in accordance with the manufacturer’s instructions during cocking,
pumping, loading, and charging.
8.2.2 Apparatus:
8.2.2.1 Manufacturer’s operating instructions for the airsoft gun.
8.2.2.2 Projectiles conforming to Specification F2679 and manufacturer’s recommended propellants.
8.2.2.3 Appropriate back stop.
8.2.3 Test Specimen—The test specimen shall consist of a new airsoft gun, selected in accordance with the manufacturer’s usual
quality assurance practices.
8.2.4 Procedure:
8.2.4.1 Conduct the test at room temperature (60 to 80°F (16 to 27°C)).
8.2.4.2 Insert the manufacturer’s recommended propellant (if required) and load the projectile magazine or chamber of an airsoft
gun to capacity.
8.2.4.3 Operate the airsoft gun in accordance with the manufacturer’s instructions. Test fire the airsoft gun until all the
projectiles have been discharged. Reload the airsoft gun, if required, and continue to fire until a minimum of 100 projectiles have
been discharged.
8.2.4.4 If an airsoft gun has variable functions (power, hop-up, mode, etc.) test the airsoft gun with at least 10 projectiles for
each of the possible combination of such variables.
8.2.4.5 The airsoft gun passes the test if no discharge of a projectile occurred except in accordance with manufacturer’s
instructions.
8.3 Safety Device Test:
8.3.1 Significance—This method determines if the safety device will withstand a 9.1 kg (20 lb) applied weight without failure,
causing the airsoft gun to discharge.
8.3.2 Apparatus—A trigger weight system having a 9.1 6 0.02 kg (20 6 0.05 lb) weight. Arrange the weight system so that
the weight can be picked up by the trigger of the airsoft gun with the airsoft gun in a vertical position, muzzle up. (A spring gauge,
capable of measuring the trigger force, can be used instead of weight system.)
8.3.3 Test Specimen—The test specimen shall consist of a new airsoft gun, selected in accordance with the manufacturer’s usual
quality assurance practices.
8.3.4 Procedure:
8.3.4.1 Conduct the test at SATP.
8.3.4.2 Conduct all tests without projectiles in the airsoft gun.
8.3.4.3 Place safety device in “safe” position or the electro
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