Firearm rail system

• US 7,059,076 B2
• Filed: 06/25/2004
• Issued: 06/13/2006
• Est. Priority Date: 06/25/2004
• Status: Active Grant

• Current Assignee: Abrams Airborne Manufacturing Incorporated
• Original Assignee: Abrams Airborne Manufacturing Incorporated
• Inventors: Stoner, Matthew J, Palacios, Gustavo T., Henderson, Jeffrey W., Mott, Gregg T., Wilson, Cade L.
• Primary Examiner(s): JOHNSON, STEPHEN
• Application Number:
  US10/877,426
• Publication Number:
  US 20060010748A1
• Time in Patent Office: 718 Days
• Field of Search: 42/750.1, 42/750.2, 42/750.4, 42/96
• US Class Current: 42/75.01
• CPC Class Codes: F41C 27/00 Accessories; Details or attachments not otherwise provided for
• CPC Class Codes: F41G 11/003 Mountings with a dove tail element, e.g. "Picatinny rail systems"

Abstract

An attachment for a firearm having a barrel with a barrel nut mechanism located around an aft portion of said barrel. The attachment includes a shield or supplemental mechanism which is positioned close to the barrel. An attachment mechanism having a first and second claw diametrically opposed to each other, are positioned to be accepted by the barrel nut mechanism secured to the barrel. In the preferred embodiment, the attachment completely encircles the barrel using an upper portion and a lower portion which is swivelly connected to said attachment mechanism at a first end and a locking mechanism securable to the upper portion of the barrel handguard.

Claims

1. An attachment for a firearm having a barrel with a barrel nut mechanism located around an aft portion of said barrel, said attachment comprising:

a) a supplemental mechanism adapted to be positioned proximate to said barrel;

b) an attachment mechanism secured to said supplemental mechanism having a first and second claw diametrically opposed to each other and positioned to be accepted by said barrel nut mechanism;

c) a barrel handguard completely surrounding a portion of said barrel and having,

1) an upper portion permanently attached to said attachment mechanism, and,

2) a lower portion swivelly connected to said attachment mechanism at a first end thereof and having a locking mechanism at an opposing second end, said locking mechanism selectively engaging said upper portion;

d) an attachment rail;

e) a rail mechanism secured to said upper portion of the barrel handguard and secureable to the attachment rail;

f) a side rail engaging said rail mechanism and the attachment rail; and

,

g) a compression mechanism compressing said side rail against both said rail mechanism and the attachment rail.

2. The attachment for a firearm according to claim 1, wherein said lower portion of the barrel handguard is removable from said attachment mechanism.

3. The attachment for a firearm according to claim 1, wherein said locking mechanism includes a spring mechanism secured to said lower portion of the barrel handguard and engagable with holes in said upper portion of the barrel handguard.

4. A mechanism for a firearm having a barrel with a barrel nut mechanism located around an aft portion of said barrel, said mechanism including:

a) an attachment mechanism having a first and second claw diametrically opposed to each other and positioned to be accepted by said barrel nut mechanism;

b) an attachment rail;

c) a rail mechanism;

d) a side rail-which engages said rail mechanism and the attachment rail; and

,

e) a compression mechanism compressing said side rail against both said rail mechanism and the attachment rail.

5. The mechanism for a firearm according to claim 4, further including a supplemental mechanism adapted to be positioned proximate to said barrel, and secured to said attachment mechanism.

6. The mechanism for a firearm according to claim 4, wherein said supplemental mechanism includes a barrel handguard completely surrounding a portion of said barrel.

7. The mechanism for a firearm according to claim 6, wherein said barrel handguard includes:

a) an upper portion permanently attached to said attachment mechanism; and

,

b) a lower portion secureable to said upper portion of the barrel handguard.

8. The mechanism for a firearm according to claim 7, wherein said lower portion of the barrel handguard is:

a) swivelly connected to said attachment mechanism at a first end thereof; and

,

b) includes a locking mechanism at an opposing second end, said locking mechanism selectively engaging said upper portion of the barrel handguard.

9. The mechanism for a firearm according to claim 8, wherein said locking mechanism includes a spring mechanism secured to said lower portion of the barrel handguard and engagable with holes in said upper portion of the barrel handguard.

10. The mechanism for a firearm according to claim 7, wherein said lower portion of the barrel handguard is removable from said attachment mechanism.

11. The mechanism for a firearm according to claim 7,

a) wherein said firearm includes an attachment rail;

and,

b) further including a rail mechanism secured to said upper portion and secureable to a top of said attachment rail.

12. An auxiliary attachment for a firearm having a barrel, and a barrel nut mechanism connecting an aft portion of said barrel, said auxiliary attachment comprising:

a) a barrel handguard completely surrounding a portion of said barrel when installed on said firearm;

b) an attachment mechanism secured to said barrel handguard and having a first and second claw diametrically opposed to each other and positioned to be accepted by said barrel nut mechanism;

c) an attachment rail;

d) a rail mechanism;

e) a side rail which engages said rail mechanism and the attachment rail; and

,

f) a compression mechanism compressing said side rail against both said rail mechanism and the attachment rail.

13. The auxiliary attachment for a firearm according to claim 12, wherein said barrel handguard includes:

a) an upper portion permanently attached to said attachment mechanism; and

,

b) a lower portion connectable to said attachment mechanism at a first end thereof and connectable to the upper portion of the barrel handguard at an opposing second end.

14. The auxiliary attachment for a firearm according to claim 13, wherein said lower portion of the barrel handguard is swivelly connected at the first end thereof to the attachment mechanism.

15. The auxiliary attachment for a firearm according to claim 14, wherein said lower portion of the barrel handguard includes a locking mechanism at the second end thereof, said locking mechanism adapted to selectively engage said upper portion of the barrel handguard.

16. The auxiliary attachment for a firearm according to claim 15, wherein said lower portion of the barrel handguard is removable from said attachment mechanism.

17. The auxiliary attachment for a firearm according to claim 15, wherein said locking mechanism includes a spring mechanism secured to said lower portion of the barrel handguard and engagable with slots in said upper portion of the barrel handguard.