IP Library Granted Patent US 12,535,295
Granted Patent B2
US 12,535,295 · App. 19/061,764 · Granted Jan 27, 2026

Firearms with an ambidextrous slide stop and/or relief

Inventors: Joseph Smathers (Dayton, NV); Todd Powers (Dayton, NV)
Assignee: OA DEFENSE LLC
F41G1/02F41A19/10F41A19/38F41A19/53F41C3/00F41C23/10
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Quick Facts
Patent No.
US 12,535,295
App. No.
19/061,764
Granted
Jan 27, 2026
Kind
B2
Abstract

The application pertains to 1911 style firearms. In some embodiments, the firearm frame comprises a relief to capture debris. In some embodiments, the firearm has an ambidextrous slide stop.

Claims (21)

1 . A firearm comprising:

a frame of a handgun comprising an outer surface with a first side and a second side;

a slide attached slidably to the frame comprising a stop notch; wherein the frame comprises an inner surface with at least one relief configured to capture debris; and

a slide stop attached to frame, wherein the slide stop is configured to move in and out of engagement with the slide for locking and releasing the slide,

wherein the slide stop comprises an integral first portion and an integral second portion removably attached to the frame, wherein the first portion is on the first side of the frame and the second portion is on the second side of the frame;

wherein the first portion comprises a first lever with a proximal end and a distal end, a shaft extending perpendicularly from the distal end of the first lever, and a stopper extending from the first lever configured to mate with the stop notch, the first lever extending along the outer surface of the frame facilitating the operation of the slide stop;

wherein the second portion comprises a second lever;

wherein the slide stop further comprises a mating mechanism between the first portion and the second portion, wherein the mating mechanism further comprises a male mating mechanism on the first portion and a female mating mechanism on the second portion wherein the male mating mechanism is a flat tab extending from the shaft configured to mate with the female mating mechanism on the second portion;

wherein the first portion and the second portion, upon mating with each other via the mating mechanism move operably with one another such that engaging the stopper with the slide stop notch is achievable with either hand of a user;

wherein the firearm further comprises an adjustable tension mechanism on the first portion to customize the force required for engaging and disengaging the stop notch.

2 . The firearm of claim 1 , wherein the mating mechanism between the first portion and the second portion of the slide stop further comprises a locking mechanism configured to prevent accidental disengagement during an operation of the firearm.

3 . The firearm of claim 1 , wherein the slide stop further comprises a visual indicator configured to indicate the status of the slide stop's engagement with the slide stop notch.

4 . The firearm of claim 1 , wherein the frame comprises two slide stop slots configured to fit the male mating mechanism of the first portion and the female mating mechanism of the second portion.

5 . The firearm of claim 1 , wherein the slide stop is made of at least one selected from the group of steel, aluminum, and titanium.

6 . The firearm of claim 1 , wherein the first lever of the slide stop further comprises a thumb pad with a textured surface.

7 . The firearm of claim 1 , wherein the second lever of the slide stop further comprises a thumb pad with a textured surface.

8 . The firearm of claim 1 , wherein the slide stop comprises no more than two components which components are the first portion and the second portion.

9 . The firearm of claim 1 , wherein the at least one relief is coaxially situated within a portion of the frame that holds a barrel.

10 . The firearm of claim 9 , wherein the at least one relief is curved.

11 . The firearm of claim 9 , wherein the at least one relief is shaped to capture debris that would be trapped in a void between the barrel and the frame in the absence of the at least one relief.

12 . The firearm of claim 1 , wherein the at least one relief is located proximate a muzzle end of the frame extending rearward and comprises a depression adjacent at least a portion of the frame configured to hold a barrel.

Continuity (10)
Continuation 19032209 · Jan 20, 2025
Continuation In Part PCTUS2023029136 · Jul 31, 2023
Continuation 18228363 · Jul 31, 2023
Continuation 18228542 · Jul 31, 2023
Provisional Application 63400953 · Aug 25, 2022
Provisional Application 63393891 · Jul 30, 2022
Provisional Application 63393453 · Jul 29, 2022
Provisional Application 63393536 · Jul 29, 2022
Provisional Application 63393552 · Jul 29, 2022
Related Publication 20250224202A1 · Jul 10, 2025
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