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公开(公告)号：US20190226776A1
公开(公告)日：2019-07-25
申请号：US16251480
申请日：2019-01-18
摘要： An upper receiver and barrel assembly includes an upper receiver, a barrel assembly and a gas piston assembly. An upper receiver housing receives a shotgun shell cartridge and the bolt carrier group includes a bolt carrier, a bolt within the bolt carrier, a firing pin and an ejector pin to expel fired shells. The barrel assembly includes a barrel, a barrel extension and a barrel nut to secure the barrel and barrel extension to the upper receiver housing. The gas piston assembly includes a piston body, a piston end cap and a piston bonnet configured to slidably receive the piston end cap therein. A piston gap is defined between the piston end cap and the bonnet end wall. The barrel defines a gas port fluidly connecting the open bore of the barrel with the piston gap. A biasing member urges the piston toward the bonnet.
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公开(公告)号：US20190093996A1
公开(公告)日：2019-03-28
申请号：US16141505
申请日：2018-09-25
发明人： Bryan P. Peterson
摘要： A system for firing reduced energy cartridges from a modern sporting rifle utilizes a bolt assembly weighing less than a conventional bolt assembly for such rifles and utilizes blow back for cycling the bolt assembly rather than gas operation. A bolt insert in a polymer bolt carrier of the bolt assembly has a projection that fits within a recess on the rear face of reduced energy cartridges. The reduced energy cartridges having a polymer casing, a rimfire power load for propellant, the power load recessed from the rear face of the casing. The power load seats in in the casing surrounded by a reinforcement liner embedded in the polymer casing.
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公开(公告)号：US20180259275A1
公开(公告)日：2018-09-13
申请号：US15914896
申请日：2018-03-07
申请人： Heckler & Koch GmbH
摘要： Example apparatus are disclosed for a lockable self-loading firearm, comprising a bolt head comprising a feed regulator pin extending traverse to a longitudinal direction with respect to the firearm, a breechblock carrier in a receiver movable in a longitudinal direction with respect to the firearm, the breechblock carrier comprising a control guide extending diagonally in the longitudinal direction with respect to the firearm through which the feed regulator pin is disposed, the control guide comprising a releasing control edge, comprising a first straight edge section positioned at a shallow angle with respect to the longitudinal direction, a second straight edge section positioned at a significantly greater angle than the first straight edge section with respect to the longitudinal direction, a third curved edge section with tangents positioned at increasingly greater angles than the second straight edge section with respect to the longitudinal direction, a locking control edge opposite the releasing control edge, the locking control edge comprising a fourth straight edge section positioned parallel with respect to the second straight edge section, a fifth straight edge section positioned parallel with respect to the first straight edge section, and at a releasing end of the releasing control edge, a sixth arc-shaped edge section connecting a first end of the third curved edge section and a second end of the first straight edge section to receive the feed regulator pin in a releasing position, wherein the sixth arc-shaped edge section has a greater diameter than the feed regulator pin with respect to the longitudinal direction.
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公开(公告)号：US20180087853A1
公开(公告)日：2018-03-29
申请号：US15589708
申请日：2017-05-08
发明人： Jesus S. Gomez
摘要： An upper receiver assembly for a firearm having an upper receiver with an integral barrel nut, a handguard assembly and a barrel nut assembly with a barrel and lock nut is provided. The barrel is received by the upper receiver and is secured directly to the upper receiver using the lock nut. The upper receiver also includes an integral handguard mounting member to which the handguard assembly may be directly attached. The upper receiver assembly allows the user to attach both the barrel and handguard assemblies directly to the upper receiver, independently of one another.
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公开(公告)号：US09915497B2
公开(公告)日：2018-03-13
申请号：US15471808
申请日：2017-03-28
发明人： Jesus S. Gomez
摘要： A buttstock assembly configured to work in conjunction with a compact buffer assembly consisting of a buffer tube, spring and bolt carrier with an integral buffer is provided. The buttstock assembly, buffer tube and bolt carrier are configured to work with AR15/M16 type firearms and their derivatives. By incorporating the buffer onto the bolt carrier, which is used in conjunction with a buffer tube of reduced length, the overall length of the host firearm is reduced by approximately 3.2 inches. No permanent modification need be made to the host firearm in order to utilize the compact buffer assembly and buttstock assembly disclosed herein.
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公开(公告)号：US20170363378A1
公开(公告)日：2017-12-21
申请号：US15657958
申请日：2017-07-24
申请人： LEO TAKEDOWN, LLC
CPC分类号： F41A11/00 , F41A3/66 , F41A5/18 , F41A21/482 , F41A21/484 , F41C23/16
摘要： Quick take-down firearms and methods of using quick-take down firearms. The quick-take down includes an upper receiver coupling and a barrel coupling. The quick take-down can be unlocked by sliding a sliding lock collar in a translational motion to an unlocked position to release locking elements from a locked configuration. In the unlocked position, a barrel and handguard may be installed onto and removed from the upper receiver of the firearm. Releasing the sliding lock collar returns it to a locked position, securing the barrel and handguard to the upper receiver.
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公开(公告)号：US09739558B2
公开(公告)日：2017-08-22
申请号：US14746845
申请日：2015-06-23
发明人： Randall M. Lee
摘要： A barrel assembly for use in a semiautomatic firearm, including a barrel and a takedown lever. A rear portion of the barrel includes a follower lug and a rear lug extending from an underside of the rear portion. The follower lug further includes a follower notch. A pin of the takedown lever includes a notch with a vertical face configured to contact a vertical face of the follower notch when the firearm is in the locked position. The rear lug is configured to be supported by a portion of a locking block of the firearm prior to firing and during a portion of the recoil period. The modifications to the barrel assembly result in increased dwell time and accuracy of the firearm.
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公开(公告)号：US20170234634A1
公开(公告)日：2017-08-17
申请号：US14058948
申请日：2013-10-21
申请人： Sig Sauer, Inc.
发明人： Robert Hirt , Christopher Sirois
IPC分类号： F41A5/26
CPC分类号： F41A5/18
摘要： A gas operating system for automatic cycling of a pistol-caliber firearm is disclosed. The disclosed system may be configured to utilize gas produced by combustion of pistol cartridge propellant to automatically cycle the firearm. To that end, the disclosed system may include a gas block which routes high-pressure gas from the barrel through a gas port to a piston. The location of the gas port may be selected to lie within a region of the barrel which generally corresponds with the peak of the pressure curve associated with a given pistol cartridge. The high-pressure gas may impinge on the piston head, forcing the piston rearward and into physical contact with a short-stroke operating rod affixed to the bolt carrier of the host firearm. Consequently, the bolt carrier may be driven rearward, allowing for cycling of the firearm to progress.
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公开(公告)号：US09612067B2
公开(公告)日：2017-04-04
申请号：US14485730
申请日：2014-09-14
申请人： Federal State Budgetary Institution « Federal Agency for Legal Protection of Military, Special and Dual Use Intellectual Activity Results » (FSBI « FALPIAR ») , Vitali Vitalevich BOYARKIN
摘要： An automatic handgun has an additional trigger mechanism and a sight. In one version, a draw bar in the butt is hinged to a rotatable fork and to the additional trigger, located on the left of the butt in an L-shaped groove. Upon rotating the fork the spring extends onto the left of the butt, and when the butt is closed onto a catch, the end of the fork grips the main trigger. Rotatable posts lie on the sight. Alternatively, a rotatable lever sits on the lower front of the breech. The lever has a post on which the additional trigger which fixes the horizontal and vertical positions is hinged, and is connected to the main trigger by a draw bar through the inside left of the breech. Shooting accuracy increases and the overall dimensions are reduced.
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公开(公告)号：US09528782B2
公开(公告)日：2016-12-27
申请号：US14815291
申请日：2015-07-31
申请人： Michael Meier
发明人： Michael Meier
IPC分类号： F41A3/66 , F41A3/72 , F41A5/18 , F41A11/00 , F41A17/38 , F41A19/06 , F41A19/10 , F41A19/12 , F41A19/14 , F41C23/04 , F41C23/16 , F41C23/20
CPC分类号： F41A3/66 , F41A3/72 , F41A5/18 , F41A5/20 , F41A11/00 , F41A11/04 , F41A17/38 , F41A19/06 , F41A19/10 , F41A19/12 , F41A19/14 , F41C23/04 , F41C23/16 , F41C23/20
摘要： A firearm is described herein. The firearm comprises a receiver assembly adapted to receive a cartridge, a bolt assembly including a firing device operable to fire the cartridge, a barrel adapted to receive the projectile after the cartridge is fired, and a gas assembly including a gas tube. The receiver assembly includes an upper receiver portion, a lower receiver portion, and an upper receiver cover. The upper receiver portion defines a longitudinal axis, and an indexing slot operable to receive the gas tube. The upper receiver portion includes at least one integrated exterior track extending generally parallel to the longitudinal axis adapted to slidably couple with the upper receiver cover and a plurality of interior tracks extending generally parallel to the longitudinal axis adapted to slidably couple with the bolt assembly. The upper and lower receiver portions are pivotally connected to one another.
摘要翻译： 这里描述了一个枪支。 火器包括适于接收盒的接收器组件，包括可操作以对盒进行点火的触发装置的螺栓组件，适于在盒被触发之后接收弹丸的筒以及包括气体管的气体组件。 接收器组件包括上接收器部分，下接收器部分和上接收器盖。 上接收器部分限定纵向轴线，并且分度槽可操作以接收气体管。 上接收器部分包括大致平行于纵向轴线延伸的至少一个集成外部轨道，该至少一个外部轨道适于与上部接收器盖可滑动地联接，以及大体平行于纵向轴线延伸的多个内部轨道，该内部轨道适于与螺栓组件可滑动地联接。 上部和下部接收器部分彼此枢转地连接。
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