Two-part folding trigger for a folding firearm

Patent metadata

Field	Value
Publication number	US-12480740-B2
Application number	US-202117108384-A
Country	US
Kind code	B2
Filing date	Jan 7, 2021
Priority date	Dec 27, 2017
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

The present disclosure describes a foldable firearm that collapses into a folded state under spring pressure. The foldable firearm may include a foldable grip assembly. The foldable grip assembly may include a foldable pistol grip, a foldable trigger assembly, a folding bar, and a foldable hand stop. The foldable grip assembly may fold into the housing of the foldable firearm. The foldable grip assembly may include a two-part folding trigger a part of which folds forward when the platform folds, to compress the vertical profile of the platform and also to present an inherent safety in the stowed configuration. The foldable firearm can also include a manual safety accessible from outside a housing of the platform that renders a trigger bar incapable of movement and release of the striking mechanism when the safety is engaged.

First claim

What is claimed is:

1 . A folding firearm comprising:
a frame comprising a trigger and a fixed rear part extending downward from an axis parallel to a slide direction of a slide of the folding firearm; a foldable grip that rotatably separates from the fixed rear part along a breakaway interface when the folding firearm is folded, and is configured to fold around a first pivot axis that is forward of a front surface of the foldable grip when in a deployed state, the foldable grip further having a grip trigger contact region proximal a top of the front surface; a foldable trigger guard comprising a front leg, a bottom leg, and a folded and a deployed state, the front leg and the bottom leg being oblique to each other in the deployed state, the bottom leg rotatably coupling to the foldable grip via a second pivot axis, the front leg and the bottom leg rotatably coupling via a third pivot axis; and the trigger configured to fold forward and split into a rear part and a forward part when the foldable grip biases the trigger forward, the trigger rotating about a fourth pivot axis.

2 . The folding firearm of claim 1 , wherein the first pivot axis is forward of the fourth pivot axis.

3 . The folding firearm of claim 2 , wherein the first pivot axis is arranged higher than the fourth pivot axis.

4 . The folding firearm of claim 1 , wherein the first pivot axis and the fourth pivot axis are the same.

5 . The folding firearm of claim 1 , further comprising a housing coupled to the frame.

6 . The folding firearm of claim 5 , wherein the front leg folds up into a channel in the housing and the bottom leg folds up below the front leg and below the housing.

7 . The folding firearm of claim 5 , wherein the front leg pivots about pins that extend outward from the front leg and wherein the pins are arranged through at least a part of the housing.

8 . The folding firearm of claim 5 , further comprising pins that extend outward from the front leg and into the housing and are aligned with a fifth pivot axis through the housing.

9 . The folding firearm of claim 1 , wherein the rear part of the trigger is coupled to a trigger bar.

10 . The folding firearm of claim 9 , wherein at least a portion of the trigger decouples from the trigger bar when the folding firearm is folded.

11 . The folding firearm of claim 1 , wherein the foldable grip comprises a locking arm that extends substantially upward from a back portion of the foldable grip and locks into the fixed rear part of the frame when the folding firearm is in the deployed state.

12 . The folding firearm of claim 1 , wherein the foldable grip comprises two extensions between a body of the foldable grip and the first pivot axis, wherein the frame includes recesses on outer sides of the frame shaped to allow rotation of the two extensions and wherein a first width between outer faces of the two extensions is substantially equal to a second width of the frame proximal the two extensions.

13 . A folding firearm comprising:
a frame comprising a trigger and a fixed rear part extending downward from an axis parallel to a slide direction of a slide of the folding firearm; a foldable grip that rotatably separates from the fixed rear part along a breakaway interface when the folding firearm is folded, and is configured to fold around a first pivot axis that is forward of a front surface of the foldable grip when in a deployed state; a foldable trigger guard comprising a front leg, a bottom leg, and a folded and a deployed state, the front leg and the bottom leg being oblique to each other in the deployed state, the bottom leg rotatably coupling to the foldable grip via a second pivot axis, the front leg and the bottom leg rotatably coupling via a third pivot axis; and the trigger configured to fold forward and split into a rear part and a forward part when the foldable grip biases the trigger forward, the trigger rotating about the first pivot axis.

14 . The folding firearm of claim 13 , further comprising a housing coupled to the frame, and wherein the front leg folds up into a channel in a bottom of the housing and the bottom leg folds up below the front leg and below the housing.

15 . The folding firearm of claim 14 , wherein the front leg pivots about pins that extend outward from the front leg and wherein the pins are arranged through at least a part of the housing.

16 . A folding firearm comprising:
a frame comprising a trigger and a fixed rear part extending downward from an axis parallel to a slide direction of a slide of the folding firearm; a foldable grip that rotatably separates from the fixed rear part along a breakaway interface when the folding firearm is folded, and is configured to fold around a first pivot axis that is forward of a front surface of the foldable grip when in a deployed state; a foldable trigger guard comprising a front leg, a bottom leg, and a folded and a deployed state, the front leg and the bottom leg being oblique to each other in the deployed state, the bottom leg rotatably coupling to the foldable grip via a second pivot axis, the front leg and the bottom leg rotatably coupling via a third pivot axis, wherein the front leg pivots about pins that extend outward from the front leg and wherein the pins are arranged through at least a part of the frame; and the trigger configured to fold forward and separate from a trigger bar when the foldable grip biases the trigger forward, the trigger rotating about a fourth pivot axis.

17 . The folding firearm of claim 16 , wherein the first and the fourth pivot axes are the same.

18 . The folding firearm of claim 16 , further comprising a housing coupled to the frame.

Assignees

• Magpul Ind Corp

Inventors

• Freeman Zachary
• Kielsmeier Nicholas

Classifications

• F41A3/72

  Operating handles or levers; Mounting thereof in breech-blocks or bolts {(F41C7/02, F41C7/06 take precedence)} · CPC title

• F41A11/04

  Articulated or collapsible guns, i.e. with hinged or telescopic parts for transport or storage (breakdown shotguns or rifles F41C7/11; folding or telescopic stocks or stock parts F41C23/04) · CPC title

• F41C9/02

  Concealed pistols, e.g. in pencils · CPC title

• F41A3/66 Primary

  Breech housings or frames; Receivers · CPC title

• F41C23/12

  Auxiliary stocks for stabilising, or for transforming pistols, e.g. revolvers, into shoulder-fired guns · CPC title