ClassID:

162496

F41A5/20 - CPC Classification

Classification description:

Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated using a gas piston arranged concentrically around the barrel

Recent Application in this class:
#1
20230366643
2023-11-16

Firearm assemblies with multiple gas ports

#2
20230160648
2023-05-25

Gas system of a firearm

#3
20220364807
2022-11-17

Firearm with gas drive

#4
20220146221
2022-05-12

Rifle

#5
20220120524
2022-04-21

Gas operated rotary barrel action and pistol

#6
20220113099
2022-04-14

Firearm assemblies with multiple gas ports

#7
20210207904
2021-07-08

Gas-powered firearm

#8
20210088307
2021-03-25

Handguard mount with tie bar

#9
20210010767
2021-01-14

NO SHEAR GAS KEY AND CARRIER SYSTEM

#10
20200378702
2020-12-03

Upper receiver for modular shotgun

#11
20200232730
2020-07-23

Bolt carrier system

#12
20200141675
2020-05-07

Automatic weapon magazine, charging handle, bolt carrier, bolt catch, scope, and bolt features and methods of operation

#13
20200124364
2020-04-23

Firearm system and methods of assembly and disassembly

#14
20200033080
2020-01-30

Bolt carrier system

#15
20190277597
2019-09-12

Firearm accessory mount

#16
20190226776
2019-07-25

Upper receiver for modular shotgun

#17
20190170461
2019-06-06

Quick release gas block securing system

#18
20190113294
2019-04-18

Automatic weapon magazine, charging handle, bolt carrier, bolt catch, scope, and bolt features and methods of operation

#19
20180180370
2018-06-28

Adjustable gas system for firearms

#20
20180156553
2018-06-07

Piston for a gas-operated firearm

#21
20170356704
2017-12-14

Automatic weapon magazine, charging handle, bolt carrier, bolt catch, scope, and bolt features and methods of operation

#22
20170045321
2017-02-16

Adjustable gas system for cartridge gas actuated firearms

#23
20160252315
2016-09-01

Bolt carrier system

#24
20160178308
2016-06-23

Systems and methods for providing a seal between a bolt carrier and a bolt carrier gas key of a firearm

#25
20160153731
2016-06-02

Automatic weapon magazine, charging handle, bolt carrier, bolt catch, scope, and bolt features and methods of operation

#26
20160061544
2016-03-03

Automatic handgun

#27
20160033219
2016-02-04

Firearm system and methods of assembly and disassembly

#28
20160003566
2016-01-07

Gas operating system for small arms with spring loaded gas valve

#29
20150369550
2015-12-24

CONCENTRIC CYLINDER GAS-OPERATED AUTOMATIC FIREARM

#30
20150338178
2015-11-26

Bolt carrier system

#31
20150330729
2015-11-19

WEAPONS SYSTEM MODIFICATION FOR IMPROVED PISTON SYSTEM

#32
20150323270
2015-11-12

Gas systems for firearms

#33
20150276334
2015-10-01

Firearm, in particular handgun, and method of producing a firearm

#34
20150260481
2015-09-17

Automatic weapon magazine, charging handle, bolt carrier, bolt catch, scope, and bolt features and methods of operation

#35
20150253091
2015-09-10

Gas flow volume control apparatus

#36
20150176933
2015-06-25

Adjustable Volume Piston System

#37
20150082978
2015-03-26

Concentric cylinder gas-operated automatic firearm

#38
20140331853
2014-11-13

Firearm action and gas system

#39
20140150639
2014-06-05

Automatic weapon magazine, charging handle, bolt carrier, bolt catch, scope, and bolt features and methods of operation

#40
20140041518
2014-02-13

Compressible bolt carrier extension system

#41
20140026744
2014-01-30

Self loading firearm bolt carrier with integral carrier key and angled strike face

#42
20130291713
2013-11-07

Annular piston system for rifles

#43
20120152105
2012-06-21

Self loading firearm bolt carrier with integral carrier key and angled strike face

#44
20120137871
2012-06-07

Concentric cylinder gas-operated automatic firearm

#45
20110017058
2011-01-27

Automatic pistol

#46
20090120271
2009-05-14

AMMUNITION SUPPLY SYSTEM

#47
20060027091
2006-02-09

Reciprocating barrel firearm apparatus

#48
17008332
2022-05-17

Charging handle, charging handle latch, firearm, and methods of operation

#49
16578048
2020-09-15

Handguard mount with tie bar

#50
14596163
2016-05-31

Reduced friction firearm components

#51
14171775
2016-02-16

Sleeve piston for actuating a firearm bolt carrier