162451 ⎘
Breech mechanisms, e.g. locks; Bolt action, i.e. the main breech opening movement being parallel to the barrel axis; Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
Sub-classes:APPARATUS AND METHODS FOR OPTIMIZING DIRECT GAS OPERATED FIREARMS
#2KINETIC DELAY OPERATING SYSTEM FOR RECOIL FIREARMS
#3AMMUNITION BLANK AND CORRESPONDING BOLT
#4FIREARM, BOLT CATCH, AND LOWER RECEIVER
#5APPARATUS AND METHODS FOR A DUAL DWELL WEIGHT FOR DIRECT GAS OPERATED FIREARMS
#6BOLT CARRIER AND BOLT FOR GAS OPERATED FIREARMS
#7BOLT CARRIER AND BOLT FOR GAS OPERATED FIREARMS
#8DETENT DELAYED BLOWBACK SYSTEM AND METHODS
#9FIREARM PISTON AND FIRE CONTROL MECHANISM
#10SKELETONIZED BOLT CARRIER FOR AN AK RIFLE
#11Compact Bolt Carrier Group
#12Enhanced Bolt Carrier Assembly
#13BOLT CARRIER MOVEMENT MECHANISM PROVIDING PRIMARY EXTRACTION FORCE MULTIPLICATION, FIREARMS COMPRISING SAME, KITS FOR CONSTRUCTING FIREARMS COMPRISING SAME, AND BOLT CARRIER GROUPS FOR ENABLING SAME
#14FIREARM BOLT
#15FIREARM, AN UPPER RECEIVER AND A BOLT CARRIER
#16KINETIC DELAY OPERAING SYSTEM FOR RECOIL FIREARMS
#17MODULAR BOLT ACTION RIFLE WITH BEARINGS
#18Slide Assembly for a Firearm
#19Automatic circulation shooting mechanism
#20INNOVATION IN THE SMOOTHBORE SEMI-AUTOMATIC TRAUMATIC SHOTGUN LOCK MECHANISM
#21Low Profile Cam Pin
#22Firearm and a Method of Manufacturing It
#23SMALL FIREARMS AND METHOD OF OPERATING SMALL FIREARMS
#24AMMUNITION BLANK AND CORRESPONDING BOLT
#25CAM SLOT FOR FIREARM
#26MULTI-CALIBER FIREARM, A BOLT AND A BARREL EXTENSION
#27ROTATABLE FIREARM BOLT ASSEMBLY AND FIREARMS INCLUDING THE SAME
#28DETENT DELAYED BLOWBACK SYSTEM AND METHODS
#29Non-metallic firearm bolt sleeve
#30Bolt carrier and bolt for gas operated firearms
#31Buffer system for firearm
#32Cam slot for firearm
#33LOCKING ACTION FIREARM
#34Slide assembly for a firearm
#35Weapon with cartridge-case ejection
#36LIGHT WEIGHT AMMUNITION AND FIREARM SYSTEMS
#37Bolt carrier and bolt for gas operated firearms
#38Firearm, bolt catch, and lower receiver
#39BOLT ASSEMBLY
#40COMPACT ACTION WITH FORWARD CHARGING HANDLE INCORPORATED INTO AN UPPER RECEIVER HANDGUARD
#41Retractable suppressor
#42Actionless rifle
#43Backdraft barrel
#44Rifle
#45Bolt carrier and bolt for gas operated firearms
#46Density Altitude Reticle
#47Firearm, bolt catch, and lower receiver
#48Firearm, bolt catch, and lower receiver
#49Retaining devices for firearm bolts and firearms including same
#50Reduced Weight Firearm
#51Firearm with secured firing pin retaining pin
#52Non-metallic firearm bolt and method of manufacturing thereof
#53Breechblock for a firearm
#54Firearm
#55Locking action firearm
#56AUTOMATIC PISTOL
#57Semi-automatic rifle
#58Bolt action AR rifle
#59Modular bushing adapter bolt action assembly for interchanging barrels
#60Breech and weapon system with the breechblock
#61Weapon system and breechblock
#62Semiautomatic or fully automatic firearm
#63Rotatable firearm bolt assembly and firearms including the same
#64Bolt carrier and bolt for gas operated firearms
#65Bolt carrier for magazine-fed firearm
#66Cartridge extraction with dummy extractor for a cased telescoped ammunition firearm
#67Slide assembly for a firearm
#68Low friction inserts for bolt carrier group
#69Adjustable carrier
#70Configurable blowback bolt system
#71Slide assembly for a firearm
#72Semi-automatic rifle restrictor mechanism and methods
#73Bolt assembly
#74Low-mass bolt carrier
#75Reduced weight firearm
#76AMBIDEXTROUS FIREARM BOLT
#77MACHINE GUN
#78B.L.T. BOLT CARRIER
#79Bolt for use in bolt action upper receiver for AR rifle
#80Cartridge extraction with dummy extractor for a cased telescoped ammunition firearm
#81Adjustable carrier
#82Cased telescoped ammunition firearm with dual feed
#83Bolt carrier and bolt for gas operated firearms
#84Radial delayed blowback operating system for a firearm incorporating a rotational inducing profile established between bolt lugs and a mating receiving pattern within the upper receiver or a trunnion installed within the receiver
#85Radial delayed blowback operating system for a firearm including a recoil discharge force attenuation interface between a cam pin and a clearance pocket configured within an upper receiver of the firearm
#86Rotatable firearm bolt assembly and firearms including the same
#87Firing pin retainer and firearm operating system including same
#88Free-floating dead mass blowback bolt carrier
#89Bolt carrier system
#90Bolt carrier and bolt for gas operated firearms
#91Bolt gas ports
#92Firearm systems and methods
#93Gas tube assemblies for gas-actuated firearms
#94Bolt carrier system
#95Operating system for small caliber rifles
#96Chamber Nested Bolt and Oval Rifling
#97Gas accumulation chamber
#98Reversible bolt for ambidextrous ejection
#99Configurable blowback bolt system
#100Upper receiver for modular shotgun
#101Firearm with locked breech rotating bolt pistol
#102Bolt carrier with a modified cam path
#103Slide action rifle with a bolt carrier locking mechanism external to the receiver
#104Radial delayed blowback operating system, such as for AR 15 platform
#105REPEATING FIREARM OF THE LINEAR TYPE WITH ASSISTED EJECTION
#106Cartridge extraction for a cased telescoped ammunition firearm
#107Cased telescoped ammunition firearm with translating chamber
#108Cased telescoped ammunition firearm with headspace reduction
#109Reduced weight firearm
#110Reversible bolt for ambidextrous ejection
#111Firearm gas redirection assembly
#112Rifle to fire pistol cartridges
#113Triggering mechanism for hybrid primer cartridges
#114Bolt carrier support system
#115Automatic firearm housing apparatus and related methods
#116Lockable self-loading firearm apparatus
#117B.L.T. BOLT CARRIER
#118Breech bolt for firearm
#119FIREARM SYSTEM WITH FIRE MODE SELECTOR SWITCH
#120Firearm of the rotating bolt type
#121Bolt for firearms and cam pin therefor
#122Operating system for small caliber rifles
#123Radial delayed blowback operating system, such as for AR 15 platform
#124Bolt carrier and bolt for gas operated firearms
#125Bolt carrier and bolt for gas operated firearms
#126Rotary lockup action
#127Semi-automatic rimfire rifle
#128DUAL EJECTION PORT FIREARM
#129Pistol with a rotary barrel
#130Bolt carrier bearing tube for rifle receiver
#131Bolt carrier bearing tube for rifle receiver
#132Firearm bolt carrier assembly kit
#133Firearm
#134Semi-automatic rimfire rifle
#135Combination gas operated rifle and subsonic cartridge
#136Contoured cam pin for a rotating bolt
#137Linear repeating firearm with assisted ejection
#138Firearm systems and methods
#139Firing block assembly
#140Firearm training apparatus and method
#141Dual ejection port firearm
#142Adjustable carrier
#143Bolt carrier system
#144Bolt carrier support system
#145Systems and methods for retaining an extractor pin in a bolt carrier group of a firearm
#146Bolt carrier
#147Bolt carrier and bolt for gas operated firearms
#148Firearm systems and methods
#149Bolt carrier system
#150Replaceable feed ramp
#151Dual ejection port firearm
#152Rimfire rifle
#153Integrated slide-carrier and firing block assembly
#154Breech bolt having asymmetric lugs
#155Bolt carrier with integral adjustable gas key
#156Upper receiver assembly for a weapon
#157Firearm
#158Bolt carrier and bolt for gas operated firearms
#159Firearm assembly with upper receiver incorporating an integral upper rail
#160Firearm
#161Bolt assembly with improved rotating locking head
#162Paintball launcher employing a carrier for striker reset before disconnecting from striker
#163Firearm operating system
#164Breech bolt for firearm
#165Paintball launcher employing a carrier for striker reset before disconnecting from striker
#166Bolt assembly for firearms
#167Compressible bolt carrier extension system
#168Gas regulator system
#169Bushing assisted cam pin
#170Multi-caliber interchangeable rifle bolt system
#171Bolt assembly and bolt carrier assembly with switch mechanism for discharging spent casing from either side of firearm receiver without need of disassembling the firearm
#172Rifle and kit for constructing same
#173OBTURATOR FOR FIREARMS
#174DEVICE TO IMPROVE ACCURACY OF A SMALL ARM
#175Firearm having an articulated bolt train with transversally displacing firing mechanism, delay blowback breech opening, and recoil damper
#176Firearm with quick coupling barrel interlock system
#177Firearm
#178Quick barrel change firearm
#179Firearm firing mechanism
#180Light Weight Machine Gun
#181Automatic rifle bolt carrier with fluted boss
#182Quick coupling barrel system for firearm
#183Firearm with quick coupling barrel system
#184ENHANCED SERVICE LIFE BOLT
#185Apparatus and Method For Improved Weapon Configuration
#186Monolithic rail platform and bolt assemblies for a firearm
#187Cam pin with roller for bolt carrier
#188Firearm with an improved breech bolt assembly
#189Multi-caliber bolt for a firearm
#190Gas operated rifle with bolt carrier and receiver assembly
#191Firearm bolt
#192Methods and apparatus for use in a locked machine gun
#193Self-Powered Impulse Averaging Recoil Operated Machine Gun With A Rotary Lock Bolt Driven By Bimodal Cams
#194Firearm
#195Firearm
#196Modular portable weapon
#197Locking and recocking assembly with swivel breech-lock and rotating locking head, particularly for inertially-actuated weapons using the kinetic energy of recoil
#198Firearm
#199FIREARM
#200Self-powered impulse averaging recoil operated machine gun with a rotary lock bolt driven by bimodal cams
#201Short recoil semi-automatic shotgun
#202Firearm bolt assembly with fully-supported bolt face
#203TOTABLE, SPRING-BIASED, TOGGLE-ACTION FIREARM
#204Semi-automatic rifle
#205Bolt assembly with locking system
#206Monolithic rail platform and bolt assemblies for a firearm
#207Firearm
#208Bolt assembly with locking system
#209Gun bolt locking mechanism
#210Delayed blowback system for a firearm
#211Skeletonized bolt carrier for an AK rifle
#212Bolt carrier movement mechanism providing primary extraction force multiplication, firearms comprising same, kits for constructing firearms comprising same, and bolt carrier groups for enabling same
#213Firearm
#214Firearm and a method of manufacturing it
#215Firearm cam pin and methods of use thereof
#216Light weight ammunition and firearm systems
#217Firearm
#218Firearm bolt carrier group
#219Firearm, bolt catch, and lower receiver
#220Bolt carrier speed control apparatus
#221Recoil assembly for a machine gun
#222Adjustable carrier
#223Systems and components for improving firearm operation, as well as defensive systems and target acquisition
#224Gas operated machine gun
#225Systems and components for improving firearm operation, as well as defensive systems and target acquisition
#226Rotary lockup action
#227Rotatable firearm bolt
#228Cam pin