ClassID:

162762

F41A21/48 - CPC Classification

Classification description:

Barrels; Gun tubes; Muzzle attachments; Barrel mounting means Barrel mounting means, e.g. releasable mountings for replaceable barrels

Sub-classes:
Recent Application in this class:
#1
20260055991
2026-02-26

Handguard Assembly, Systems for Handguard Sleeve Attachments, and Related Firearms and Methods

#2
20260002753
2026-01-01

FIREARM RECEIVER ASSEMBLY

#3
20260002752
2026-01-01

BARREL NUT ASSEMBLY AND METHOD TO ATTACH A BARREL TO A FIREARM USING SUCH ASSEMBLY

#4
20250369717
2025-12-04

Adaptable Handguard

#5
20250362103
2025-11-27

FIREARMS, SYSTEMS, AND METHODS FOR QUICK CONNECTION OF A BARREL TO A FIREARM

#6
20250334370
2025-10-30

RIFLE CONVERSION DEVICES AND METHOD

#7
20250314441
2025-10-09

AR Platform Firearm

#8
20250264297
2025-08-21

HANDGUARD ASSEMBLY

#9
20250237457
2025-07-24

Adaptable Handguard

#10
20250207882
2025-06-26

MULTIPLE-BARREL FIREARM AND METHOD OF USE

#11
20250189252
2025-06-12

SILENCER FOR MULTI BARREL WEAPON SYSTEMS

#12
20250146779
2025-05-08

SILENCER FOR MULTI BARREL WEAPON SYSTEMS

#13
20250102258
2025-03-27

MULTIPART TRUNNION AND AMBIDEXTROUSLY MOUNTABLE BARREL FOR FIREARMS

#14
20250003711
2025-01-02

ADDITIVE METAL RIFLE SYSTEMS AND MANUFACTURING METHODS

#15
20240337456
2024-10-10

Carbon Firearm Barrel and Related Methods of Manufacturing

#16
20240247891
2024-07-25

CUSTOMIZABLE FIREARM SYSTEM

#17
20240240902
2024-07-18

Barrel nut assembly

#18
20240230268
2024-07-11

FIREARM ASSEMBLY WITH SEGREGATED TAKE DOWN LUGS

#19
20240191958
2024-06-13

Weapon usage monitoring system having discharge event monitoring using neural network analysis

#20
20240183380
2024-06-06

BARREL NUT ASSEMBLY AND METHOD TO ATTACH A BARREL TO A FIREARM USING SUCH ASSEMBLY

#21
20240085127
2024-03-14

MODULAR BOLT ACTION RIFLE

#22
20240068761
2024-02-29

WEAPON USAGE MONITORING SYSTEM HAVING PREDICTIVE MAINTENANCE AND PERFORMANCE METRICS

#23
20240027156
2024-01-25

A WEAPON USAGE MONITORING SYSTEM HAVING A SIGNAL PROCESSING MODULE THAT DETERMINES A DISCHARGE EVENT

#24
20230349658
2023-11-02

Firearm receiver assembly

#25
20230305173
2023-09-28

Weapon usage monitoring system having weapon orientation monitoring using real time kinematics

#26
20230304763
2023-09-28

Weapon usage monitoring system having performance metrics based on discharge event detection

#27
20230288167
2023-09-14

Weapon usage monitoring system having predictive maintenance based on analysis of shot separation

#28
20230288160
2023-09-14

Weapon usage monitoring system having shot count monitoring and trigger pull sensor

#29
20230280127
2023-09-07

Free-floating rifle rail and barrel locking system(s)/assemblies

#30
20230251053
2023-08-10

Silencer for multi barrel weapon systems

#31
20230221092
2023-07-13

Handguard assembly

#32
20230194202
2023-06-22

Firearm and Method of Assembly with Two-Stage Independent Taper-Lock Barrel Nuts

#33
20230152057
2023-05-18

FIREARM SHELL CASING

#34
20230146977
2023-05-11

Retractable suppressor

#35
20230128221
2023-04-27

Actionless rifle

#36
20230128014
2023-04-27

Customizable firearm system

#37
20230127748
2023-04-27

Backdraft barrel

#38
20230106732
2023-04-06

Barrel nut assembly and method to attach a barrel to a firearm using such assembly

#39
20230014062
2023-01-19

Density Altitude Reticle

#40
20220404119
2022-12-22

Free-floating rifle rail and barrel locking system(s)/assemblies

#41
20220373286
2022-11-24

Reduced Weight Firearm

#42
20220316830
2022-10-06

Upper receiver for a firearm

#43
20220290940
2022-09-15

RAPID REMOVAL-INSTALLATION MECHANISM FOR FIREARM BARRELS

#44
20220282950
2022-09-08

Semi-automatic rifle

#45
20220228838
2022-07-21

Retention system

#46
20220228828
2022-07-21

Firearm with field-replaceable blank-fire chamber preventing chambering of live rounds

#47
20220170713
2022-06-02

Semi-automatic shotgun

#48
20220107154
2022-04-07

Rifle conversion devices and method

#49
20220042765
2022-02-10

Handguard quick dismantling structure of toy gun

#50
20210348870
2021-11-11

Firearm receiver assembly

#51
20210341249
2021-11-04

FIREARM BARREL PRE-LOADING DEVICES, CONNECTION ASSEMBLIES, AND FIREARMS

#52
20210278169
2021-09-09

Free-floating rifle rail and barrel locking system(s)/assemblies

#53
20210270307
2021-09-02

Barrel nut assembly and method to attach a barrel to a firearm using such assembly

#54
20210180904
2021-06-17

Firearm barrel trunnion

#55
20210172695
2021-06-10

Handheld measurement, search and safety device

#56
20210156638
2021-05-27

Barrel nut assembly and method to attach a barrel to a firearm using such assembly

#57
20210114174
2021-04-22

Armorer tool system for assembly and servicing AR platform firearms

#58
20210108874
2021-04-15

Reduced weight firearm

#59
20210048275
2021-02-18

FIREARM STOCK WITH BARREL-CENTERING FEATURE

#60
20210003370
2021-01-07

REAR SIGHT BLOCK AND BARREL FOR A FIREARM

#61
20200378710
2020-12-03

Singular Modular Barrel Assembly

#62
20200309479
2020-10-01

Modular precision rifle assembly and method for configuring rifle components and accessories

#63
20200284535
2020-09-10

Chassis of semiautomatic rifles

#64
20200256636
2020-08-13

Firearm equipment and accessories

#65
20200141701
2020-05-07

Rear sight block and barrel for a firearm

#66
20200141682
2020-05-07

CONCENTRIC RIFLE BARREL ASSEMBLY

#67
20200025484
2020-01-23

Free-floating rifle rail and barrel locking system(S)/assemblies

#68
20200018564
2020-01-16

Firearm receiver assembly

#69
20190285377
2019-09-19

Armorer's wrench

#70
20190257615
2019-08-22

Modular precision rifle assembly and method for configuring rifle components and accessories

#71
20190226776
2019-07-25

Upper receiver for modular shotgun

#72
20190212082
2019-07-11

Compact shotgun, multipurpose mount, and trigger assembly

#73
20190178598
2019-06-13

Concentric rifle barrel assembly

#74
20190170476
2019-06-06

Firearm handguard securement system and related method

#75
20190154396
2019-05-23

Free-floating rifle rail and barrel locking system(s)/assemblies

#76
20190120585
2019-04-25

Combat vehicle having a weapon system

#77
20190101355
2019-04-04

Handguard attachment system for a firearm

#78
20190086175
2019-03-21

Firearm barrel pre-loading devices, connection assemblies, and firearms

#79
20190078851
2019-03-14

WEAPON SYSTEM MODIFICATION DIRECTED TO SHORT STROKE PISTON ASSEMBLY

#80
20190056194
2019-02-21

Stock for a firearm

#81
20190056188
2019-02-21

Firearm assembly system and method

#82
20190041152
2019-02-07

Reduced weight firearm

#83
20190030690
2019-01-31

Combination castlenut and barrelnut socket adapter for use with torque creating devices

#84
20190024999
2019-01-24

System for improved weapon system barrel

#85
20190011208
2019-01-10

Sensor system for advanced smart weapons barrels

#86
20180306551
2018-10-25

Barrel nut attached handguard

#87
20180245870
2018-08-30

Integrated structure of barrel and air storage pipe of air gun

#88
20180202759
2018-07-19

FIREARM RAIL/HANDGUARD AND MOUNTING SYSTEM

#89
20180202758
2018-07-19

Firearm rail/handguard and mounting system

#90
20180202757
2018-07-19

Firearm rail/handguard and mounting system

#91
20180202737
2018-07-19

Modular gun housing

#92
20180172384
2018-06-21

Quick Take-Down Firearm

#93
20180172382
2018-06-21

Weapon barrel mounting

#94
20180172375
2018-06-21

Firearm of the rotating bolt type

#95
20180128568
2018-05-10

Centering device for mounting barrel

#96
20180119721
2018-05-03

Barrel nut assembly and method to attach a barrel to a firearm using such assembly

#97
20180087853
2018-03-29

Firearm receiver assembly

#98
20180031344
2018-02-01

Firearm with user authentication to remove or add components

#99
20170314890
2017-11-02

Firearm stock with barrel-centering feature

#100
20170314881
2017-11-02

Firearm barrel assembly

#101
20170307321
2017-10-26

Reduced weight firearm

#102
20170292804
2017-10-12

Firearm with user authentication to remove or add components

#103
20170284772
2017-10-05

Non-lethal probe for target control

#104
20170284760
2017-10-05

Quick take-down firearm

#105
20170219310
2017-08-03

Rifle stock assembly for different barreled receivers

#106
20170199006
2017-07-13

Expansion barrel nut systems and methods for attaching a handguard to an upper receiver of a firearm

#107
20170191779
2017-07-06

Barrel nut mounted integral firearm sound suppressor

#108
20170160048
2017-06-08

Rifle handguard system

#109
20170108303
2017-04-20

Barrel nut assembly and method to attach a barrel to a firearm using such assembly

#110
20170097207
2017-04-06

Handguard with Timing Pin

#111
20170089657
2017-03-30

Barrel of a gun

#112
20170067708
2017-03-09

FIREARM WITH INTERCHANGEABLE PARTS

#113
20170023329
2017-01-26

Composite handguard for a firearm and mounting/attachment apparatus therefor

#114
20160377360
2016-12-29

Firearm

#115
20160363405
2016-12-15

BOLT ACTION AR15 BARREL NUT

#116
20160356567
2016-12-08

Heat dissipation assembly incorporated into a handguard surrounding a rifle barrel

#117
20160341518
2016-11-24

Modular stock for a firearm

#118
20160273876
2016-09-22

Modular stock for a firearm

#119
20160161204
2016-06-09

Barrel installation tool

#120
20160151892
2016-06-02

Barrel installation tool

#121
20160010938
2016-01-14

BARREL EXTENSION

#122
20160010937
2016-01-14

Compact survival firearm

#123
20150369555
2015-12-24

Systems and methods for mounting barrels to firearms

#124
20150308779
2015-10-29

QUICK-RELEASE BARREL FIREARM

#125
20150267988
2015-09-24

Method for improving rifle accuracy

#126
20150267986
2015-09-24

Rifle accuracy and noise suppression systems

#127
20150266168
2015-09-24

Barrel installation tool

#128
20150260470
2015-09-17

Systems for firearms

#129
20150260468
2015-09-17

Systems for firearms

#130
20150247695
2015-09-03

Quick detach barrel mounting system

#131
20150233674
2015-08-20

Targeting adjustments to control the impact of breathing, tremor, heartbeat and other accuracy-reducing factors

#132
20150198405
2015-07-16

BARREL NUT WRENCH FOR FIREARMS

#133
20140345179
2014-11-27

Rifle forend with integrated barrel nut

#134
20140290471
2014-10-02

DEVICE AND METHOD FOR THE THERMAL COMPENSATION OF A WEAPON BARREL

#135
20140245878
2014-09-04

Systems and methods for disrupter recovery

#136
20140165444
2014-06-19

Firearm with barrel cinching clamp

#137
20140075817
2014-03-20

Barrel nut assembly and method to attach a barrel to a firearm using such assembly

#138
20140068987
2014-03-13

Firearm with forward grip attachment system

#139
20140053445
2014-02-27

Firearm with interchangeable calibers and/or improved sights

#140
20140041274
2014-02-13

Weapon barrel

#141
20140033590
2014-02-06

Barrel nut assembly and method to attach a barrel to a firearm using such assembly

#142
20130326924
2013-12-12

Modular firearm stock system

#143
20130291420
2013-11-07

Firearm and firearm system

#144
20130269510
2013-10-17

Gas regulator system

#145
20130174462
2013-07-11

Barrel assembly for firearms and method for manufacturing it

#146
20130139424
2013-06-06

Multi-caliber interchangeable rifle bolt system

#147
20130055616
2013-03-07

Thermal barrier for firearms and firearm provided with such a thermal barrier

#148
20120325079
2012-12-27

Sports or Defence Rifle With Container Pipe for Cartridges

#149
20120291329
2012-11-22

Rimfire action platform conversion

#150
20120180360
2012-07-19

Rifle stock assembly for different barreled receivers

#151
20120180354
2012-07-19

Quick barrel change firearm

#152
20120159828
2012-06-28

Modular firearm system

#153
20120137563
2012-06-07

Rimfire action platform conversion

#154
20120118132
2012-05-17

High attrition, rapid dispersal X 8 (H.A.R.D. 8) extreme rate of fire weapon system

#155
20120117847
2012-05-17

Shroud for a firearm and a method of configuring the same

#156
20120090588
2012-04-19

Initial velocity accelerating tube

#157
20120090150
2012-04-19

Method for mounting firearm barrel

#158
20120047786
2012-03-01

Modular firearm stock system

#159
20120017483
2012-01-26

Firearm barrel retaining system

#160
20110265777
2011-11-03

Paintball marker with ability to discharge different sized projectiles

#161
20110247254
2011-10-13

ATTACHMENT ASSEMBLY FOR FIREARM HANDGUARD AND METHOD OF ATTACHING HANDGUARD TO A FIREARM

#162
20110185883
2011-08-04

Modified support structure for barrel of gatling gun

#163
20110016765
2011-01-27

Barrel latch locking device

#164
20110000474
2011-01-06

Paintball marker with ability to discharge different sized projectiles

#165
20100307042
2010-12-09

MODULAR FIREARM STOCK SYSTEM

#166
20100288255
2010-11-18

Apparatus, system, and method for launching a granular substance

#167
20100186276
2010-07-29

Rifle and kit for making same

#168
20090277067
2009-11-12

Take-down rifles including a caliber exchange system

#169
20090133681
2009-05-28

Multi-purposes mechanism for shooting apparatus

#170
20090133570
2009-05-28

Weapon barrel and damping device

#171
20090019755
2009-01-22

Modular portable weapon

#172
20080295818
2008-12-04

Paintball gun, retrofit kit assembly, and methods of making and using

#173
20080178510
2008-07-31

Rifle having a replaceable barrel

#174
20080134557
2008-06-12

Machine guns having detachable barrels and methods of operating the same

#175
20070271833
2007-11-29

FIREARM BARREL VIBRATIONAL STABILIZING DEVICE

#176
20070137469
2007-06-21

Contact safety device

#177
20070028500
2007-02-08

Machine guns having detachable barrels and methods operating the same

#178
20060201044
2006-09-14

Barrel latch locking device

#179
20060179701
2006-08-17

Display clamp assembly for extra firearm barrels

#180
20060032103
2006-02-16

Machine guns having detachable barrels and methods of operating the same

#181
20050247186
2005-11-10

Floating barrel handgun method of recoil elimination

#182
20050188590
2005-09-01

Breech construction for firearms

#183
20050183316
2005-08-25

Gun or rifle

#184
20050081708
2005-04-21

Weapons platform construction

#185
19004703
2025-11-25

Firearms, systems, and methods for quick connection of a barrel to a firearm

#186
18670535
2026-03-17

Handguard mounting system

#187
18322313
2025-10-07

Barrel shot tracker, firearm with barrel shot tracker and methods of use thereof

#188
17829544
2023-03-14

Silencer for multi barrel weapon systems

#189
17824962
2023-10-03

Paintball gun barrel system

#190
16913654
2024-06-25

Barrel nut

#191
16519409
2020-09-22

Modular block weapon

#192
16209917
2019-09-17

Pistol

#193
16007366
2019-08-20

Firearm system

#194
15728448
2018-07-03

Gun conversion kit

#195
15378978
2019-07-09

Barrel Nut Anti-Rotation Handguard System

#196
14823810
2019-03-05

Breakdown adapter