Multi-caliber ambidextrously controllable firearm

• US 20060156606A1
• Filed: 08/04/2004
• Published: 07/20/2006
• Est. Priority Date: 08/04/2003
• Status: Active Grant

• Current Assignee: RMDI, LLC
• Original Assignee: RMDI, LLC
• Inventors: Nebeker, Darin G., Holway, Jon C., Robinson, Alexander J.
• Granted Patent: US 7,596,900 B2
• Time in Patent Office: Days
• US Class Current: 42/7
• CPC Class Codes: F41A 15/12 for bolt-action guns
• CPC Class Codes: F41A 17/36 locking the gun automatically in a safety condition when the magazine is empty or removed F41A17/44 takes precedence
• CPC Class Codes: F41A 33/06 Recoil simulators

Abstract

A multi-caliber ambidextrously controlled firearm that includes an adjustable ejection system to facilitate the ejection of spent cartridge casings from a firearm. The adjustable ejection system includes an ejection port defined by an aperture in the firearm and a deflector. The deflector is attached to the firearm to adjust the size of the ejection port and may be attached at one of at least two attachment positions of the firearm. The adjustable ejector system includes an ejector selectively attached to the firearm at one of at least two ejector attachment positions. The improved firearm also includes an ambidextrous magazine catch system for selectively retaining a magazine within a firearm. The magazine catch system includes a first button opposite a second button such that either button may be actuated by a user to release the magazine retained with the firearm.

Claims

1. An improved firearm comprising:

a magazine well;

a magazine catch system comprising a first button accessible from a side of the firearm and a second button accessible on an opposite side of the firearm, wherein the first button and the second button are disposed above the trigger guard; and

a bolt hold open system comprising a bolt hold open control arm disposed adjacent the trigger guard.

2. The improved firearm of claim 1, wherein the first button comprises a first actuation surface and the second button comprises a second actuation surface, wherein the magazine catch system further comprises a catch arm having a first bevel, a second bevel, and a catch surface, wherein the catch surface selectively engages the magazine to retain the magazine in the magazine well of the firearm, wherein if the first button is depressed, the catch surface moves out of engagement with a magazine, wherein the bolt hold open system further comprises a bolt hold open body, wherein the bolt hold open body extends through a slot in the catch arm.

3. The improved firearm of claim 2, wherein the first and second actuation surfaces are rounded surfaces.

4. The improved firearm of claim 2, wherein the first and second actuation surfaces are angled surfaces.

5. The improved firearm of claim 1, wherein the bolt hold open control arm extends along both sides of a trigger guard.

6. A magazine catch system for the retention and removal of a magazine within a firearm having a magazine well, the magazine catch system comprising:

a first button comprising a first angled slot extending at an angle to a lateral direction and a catch surface, wherein the catch surface selectively engages the magazine to retain the magazine in the magazine well of the firearm;

a second button disposed opposite the first button, wherein the second button comprises a second angled slot extending at a different angle than the first angled slot; and

a catch guide pin, wherein the catch guide pin is movable in the first and second angled slots of the first and second buttons.

7. The magazine catch system of claim 6, wherein if the first button is depressed, the second button moves toward the first button.

8. The magazine catch system of claim 6, wherein if the first button is depressed, the catch guide pin moves laterally.

9. An adjustable ejection system to facilitate the ejection of a case from a firearm, the adjustable ejection system comprising:

an ejector attachable to at least two attachment positions in the firearm, wherein the ejector is attached to the firearm at one of the at least two attachment positions; and

an ejection port in the firearm.

10. The adjustable ejection system of claim 9, wherein the attachment positions are defined by a slot in the firearm.

11. The adjustable ejection system of claim 9, wherein the attachment positions are defined by holes in the firearm.

12. An adjustable ejection system to facilitate the ejection of a case from a firearm, the adjustable ejection system comprising:

an ejection port defined by an aperture in the firearm and a deflector wherein the deflector is attached to the firearm to adjust the size of the ejection port, wherein the firearm comprises at least two attachment positions, wherein the deflector is attached to the firearm at one of the at least two attachment positions; and

an ejector attached to the firearm.

13. The adjustable ejection system of claim 12, wherein the attachment positions are defined by a slot in the firearm.

14. The adjustable ejection system of claim 12, wherein the attachment positions are defined by a hole in the firearm.

15. The adjustable ejection system of claim 12, wherein the deflector is attached to the firearm by a rail, the rail providing at least two attachment positions.

16. The adjustable ejection system of claim 12, wherein the ejector is attachable to at least two ejector attachment positions in the firearm.

17. An improved firearm comprising:

a bolt comprising a bolt face, a bolt locking surface, and a cam surface; and

a bolt carrier shaped to enclose the bolt on three sides, wherein the bolt carrier comprises a reciprocal cam surface, wherein the cam surface slidably abuts the reciprocal cam surface to position the bolt locking surface against a locking surface of the firearm, wherein the bolt face is positioned by the bolt carrier.

18. The improved firearm of claim 17, wherein the bolt further comprises a bolt guide ear, wherein the bolt carrier further comprises a groove, wherein the bolt guide ear is slidable in the groove to position the bolt face.

19. The improved firearm of claim 17, wherein the reciprocal cam surface of the bolt carrier is formed through a window on one side of the bolt carrier.