A rimfire takedown firearm that may utilize removable barrels of different calibers. The disclosed firearm does not require a barrel extension, instead providing positioning of the barrel that is sufficiently precise and repeatable. Tensioning of the barrel is provided passively during installation of the removable barrel, without need for adjustment or additional tightening. Securing the removable barrel to the receiver does not structurally involve the fore end, thereby avoiding harmonics effects associated with fore end interfaces to the receiver. The firearm takes advantage of an "underspaced" chamber arrangement to provide additional tolerance for manufacturing and assembly of the firearm.
A semiautomatic handgun has a slide that receives a mounting plate with dovetail slots. The mounting plate having a red dot sight, or other sight mounted thereto, or may be a blank mounting plate such that integrated open iron sights on the handgun may be utilized. The slide has an integrated latch member that is movable between a capture position and a release position. In embodiments, the latch member, as it captures the mounting plate, providing a repeatable left-right centering of the mounting plate with sight thereon by a kinematic coupling. Two dovetail projections on the slide providing repeatable up-down or elevation positioning as the mounting plate with sight thereon is slid onto the slide. In embodiments, the latch member is U-shaped, with two catch portions. The mounting plate has a conventional industry standardized interface on a top side for receiving the red dot sight.
A rifle having a straight pull bolt assembly with a bolt handle that extends outward and downward from a bolt operation mechanism. The bolt handle rotatable a limited rotational range forward and rearwardly about a horizontal axis for operating the mechanism. The handle can be reconfigured to position its rotational range about the horizontal axis and can be attached to the mechanism at either left or right sides to provide for ambidextrous operation. Bolt heads, lower frame members with magazine wells, and barrel assemblies can be readily swapped to change ammunition. The bolt assembly can be unlocked by firing or by a thumb push button release at the backside of the mechanism. A bolt removal release mechanism is forward of the thumb pushbutton and an ejector includes a spring bias and cam follower surface to reliably eject casings.
F41A 3/06 - Culasses à bloc ou à coin, c. à d. dont le mouvement principal d'ouverture est transversal à l'axe du tube de l'arme avec un mécanisme à bloc de culasse pivotant autour d'un axe horizontal, disposé à l'arrière du bloc de culasse et orienté transversalement à l'axe du tube de l'arme
F41A 3/12 - Culasses mobiles axialement, c. à d. dont le mouvement principal d'ouverture est parallèle à l'axe du tube de l'arme
F41A 3/20 - Verrous actionnés par traction rectiligne, c. à d. la main de manœuvre effectuant uniquement un mouvement rectiligne parallèle à l'axe du tube de l'arme
F41A 3/22 - Mécanismes à verrous rigides, c. à d. les éléments de verrouillage formant un assemblage rigide avec, respectivement, le bloc de culasse ou son levier de manœuvre, et le tube de l'arme ou la boîte de culasse les verrous tournant autour de l'axe du tube de l'arme, p.ex. verrous de culasse cylindriques rotatifs à commande manuelle le verrouillage étant effectué par la rotation de la poignée ou du levier d'armement transversalement à l'axe du tube de l'arme
F41A 3/64 - Montage de blocs de culasse; Accessoires pour les blocs de culasse ou pour leur montage
F41A 3/66 - Boîtes ou châssis de culasse; Carcasses
F41A 3/72 - Leviers ou poignées d'armement; Leur montage sur les blocs de culasse
F41A 35/06 - Adaptations des armes à feu pour permettre leur utilisation par des tireurs droitiers et des tireurs gauchers
A trigger assembly having a user-adjustable actuation force. The trigger assembly includes a trigger and indexing pin that are rotatable about a pivot axis and mounted to a locking block of a firearm. A torsion spring bridges the indexing pin and the locking block. Rotation of the indexing pin in a first rotational direction increases the actuation force of the trigger assembly, while rotation of the indexing pin in a second, opposite rotational direction decreases the actuation force. The end user is able to adjust the actuation force of the trigger without procuring additional components and without requiring the services of a locksmith. A safety trigger has a lower pivot point on the trigger and provides a stop that prevents retraction of the trigger unless the safety trigger is retracted first.
F41A 17/72 - Sûretés de percuteur, c. à d. moyens pour prévenir le mouvement des pièces de percussion coulissantes commandées par la détente, c. à d. dans lesquelles le mouvement de la détente met la sûreté de percuteur hors fonction pendant le tir
A semiautomatic shotgun comprising a receiver, a barrel, a forward gas block assembly attached to the barrel, a slider assembly rearward of the gas block assembly extending into the receiver. Upon firing a shotshell the explosive gases in the barrel are diverted through two ports into the gas block assembly, specifically into a pair of lateral pressure relief valves positioned on both sides of the barrel. The pressure relief valves further having a gas pathway to a piston chamber. A piston is forced rearwardly and engages a slider of the slider assembly that is linked to a breech block in the receiver. The breech block loads unfired shells and ejects the fired shells accomplishing the semiautomatic recycling. The dual pressure relief valves actuate to moderate and limit the gas pressure that enters the piston chamber when using shotshells of different power levels thereby providing consistency in the recycling operation.
F41A 5/22 - Mécanismes ou systèmes automatiques de déverrouillage de la culasse à l'aide d'une force créée par une charge propulsive par emprunt des gaz ayant plusieurs pistons à gaz
F41A 21/28 - Chambres d'expansion des gaz; Tubes d'arme ayant des orifices d'évacuation des gaz
F41A 5/18 - Mécanismes ou systèmes automatiques de déverrouillage de la culasse à l'aide d'une force créée par une charge propulsive par emprunt des gaz
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