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公开(公告)号：US12123668B2
公开(公告)日：2024-10-22
申请号：US18125827
申请日：2023-03-24
发明人： Ivan Kolev , Donald Senchuk , Brett Tannone
摘要： An ambidextrous bolt catch for use with a firearm, including: a bolt catch; a first lever operably coupled to the bolt catch via a connecting pin, wherein movement of the bolt catch causes movement of the first lever and movement of the first lever causes movement of the bolt catch; and a second lever pivotally mounted to the first lever.
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公开(公告)号：US11614292B2
公开(公告)日：2023-03-28
申请号：US17143022
申请日：2021-01-06
申请人： BROWNING
发明人： Ryan D. Cook , Richard F. Korth
摘要： A number of embodiments of a firearm are disclosed where the firearm includes a magazine configured to hold the bolt in an open position when the magazine is empty. In one embodiment, the firearm includes a bolt stop mechanism that moves between a first position where it allows the bolt to cycle between an open position and a closed position and a second position where it holds the bolt in the open position. The magazine is configured to actuate the bolt stop mechanism to the first position when the magazine is empty.
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公开(公告)号：US20230052688A1
公开(公告)日：2023-02-16
申请号：US17977028
申请日：2022-10-31
发明人： James Dean Stroda
摘要： A bolt stop actuator is disclosed. The actuator may include a lift arm, a first leg extending from a point proximate to an end of the lift bar and generally perpendicular therefrom, a second leg extending in the same direction from the lift bar as the first leg, and a projection extending from the lift bar and configured to contact a follower of an empty magazine when the bolt stop actuator is assembled into a firearm. Neither the first leg, nor the second leg, include apertures positioned distal to the lift arm.
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公开(公告)号：US20220364810A1
公开(公告)日：2022-11-17
申请号：US17713833
申请日：2022-04-05
发明人： Joseph I. Stenzel
摘要： Firearms with combined bolt catch and ejector have a bolt defining a bolt face configured to receive a case head of a cartridge, a bolt catch connected to a frame and movable between a first operational position in which bolt reciprocation forward from the rear position is enabled, and a second restraining position in which a portion of the bolt catch restrains the bolt in the rear position, and the bolt catch having an ejector surface portion positioned clear of the bolt face when the bolt catch is in the first operational position and in registration with a portion of the bolt face when the bolt catch is in the second restraining position such that a case head received by the bolt face strikes the ejector surface portion upon movement of the bolt from the forward to the rearward position when the bolt catch is in the second restraining position.
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公开(公告)号：US11313639B2
公开(公告)日：2022-04-26
申请号：US16630463
申请日：2017-07-14
发明人： Raymond Boone , Joel Muskovich , Michael Abraham , Brian Bascom
摘要： An auto-loading firearm having a system for switching between live fire and training modes via a selector switch mounted either on the firearm or on a specially designed training attachment. An action arm is selectively movable in response to movement of the selector switch between a live fire position, in which the firearm is free to operate as normal, and a training mode position where the action arm interrupts operation of the hammer and prevents the firearm from discharging while allowing the trigger and, if present, trigger spring to continue operating.
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公开(公告)号：US20210247155A1
公开(公告)日：2021-08-12
申请号：US17048547
申请日：2020-06-26
摘要： This disclosure describes systems, methods, and apparatus for a follower assembly comprising one or more dummy cartridges, the first thereof comprising an angled follower platform that when pressed between the follower spring and a final live cartridge in the magazine, rotates to a first side of the magazine and enhances follower interaction with a slide lock mechanism. The follower platform may also be angled back to front to further enhance this interaction. The follower platform may include a protruding heel extending laterally from a front portion of the first side of the follower platform configured to interface with the slide lock mechanism. A rear stop may extend from a rear portion of the first side and interface with a downward-facing surface of the magazine near the feed end, wherein contact between these two surfaces causes a front end of the first dummy cartridge to rotate upward.
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公开(公告)号：US20210080221A1
公开(公告)日：2021-03-18
申请号：US16747351
申请日：2020-01-20
申请人： Wilfried Alber , Georg Holthaus
发明人： Wilfried Alber , Georg Holthaus
摘要： The invention relates to a firearm, in particular for shooting cartridge ammunition, having at least one weapon chassis 3, a weapon system support 4, and a weapon system apparatus 5; at least the weapon chassis 3 and the weapon system support 4 have corresponding engagement means 10 provided in spacing patterns via which they can be axially positioned differently relative to each other.
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公开(公告)号：US10890394B2
公开(公告)日：2021-01-12
申请号：US16738651
申请日：2020-01-09
摘要： A last round hold open (LRHO) apparatus comprising a first lever having a first end and a second end, a mag stop component to which the first lever is pivotally affixed at the second end, a second lever disposed proximate the second end of the first lever, the second lever pivotally affixed to the mag stop, a bolt catch affixed to the mag stop and the second lever, and a magazine release extending from the first end of the first lever.
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公开(公告)号：US10718584B2
公开(公告)日：2020-07-21
申请号：US16378010
申请日：2019-04-08
申请人： RA Brands, L.L.C.
发明人： Matthew Duhon
摘要： A bolt hold open assembly for a rotary magazine may include a bolt hold open lever movable to a locked position to inhibit forward motion of the bolt after firing the last round of ammunition. The bolt hold open lever may be moved to the locked position by a bolt hold open riser that is activated by a paddle movable with the rotor assembly of the rotary magazine.
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公开(公告)号：US10508874B2
公开(公告)日：2019-12-17
申请号：US15574764
申请日：2016-05-16
申请人： 95790087 Canada Inc.
摘要： A firearm comprising: (i) an ammunition magazine which automatically ejects from the lower receiver of the firearm when the ammunition magazine is spent; (ii) a control group comprising a magazine release mechanism for releasing the magazine catch so that the ammunition magazine is detachable from the lower receiver, a bolt catch engage mechanism for engaging the bolt catch with the bolt carrier and retaining the bolt carrier in the retracted position, and a bolt catch release mechanism for releasing the bolt catch from the bolt carrier and allowing the bolt carrier to move forward, wherein the control group components can be operated by the user on either the left side or right side of the firearm; and (iii) optionally, a charging handle which can be operated by the user on either the left side or right side of the firearm.
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