Systems and methods for providing a seal between a bolt carrier and a bolt carrier gas key of a firearm

1. An assembly for preventing gas leaks in a bolt carrier group of a firearm, the assembly comprising:

a bolt carrier with a gas hole;

a bolt carrier gas key attachable to the bolt carrier about the gas hole;

an O-ring groove disposed on the bolt carrier about the gas hole, wherein the O-ring groove comprises a circular groove disposed on the bolt carrier about the gas hole; the O-ring groove having a larger inside diameter than an outside diameter of the gas hole and

a seal disposed within the O-ring groove, wherein the seal comprises an O-ring substantially conforming to a size, shape, and dimension of the O-ring groove.

2. The assembly of claim 1 , wherein the bolt carrier gas key has a substantially flat gas key surface adjacent to the gas hole whereby the gas key surface compresses the O-ring against the walls of the O-ring groove.

3. The assembly of claim 1 , wherein the O-ring comprises rubber.

4. The assembly of claim 1 , wherein the O-ring comprises a metallic.

5. The assembly of claim 1 , wherein the bolt carrier gas key is attachable to the bolt carrier by way of at least one screw.

6. The assembly of claim 5 , wherein as the at least one screw is tightened, the seal is compressed within the O-ring groove between the bolt carrier and the bolt carrier gas key to form a gap-filling barrier therebetween.

7. A method for providing an O-ring seal between a bolt carrier with a gas hole and a bolt carrier gas key of a firearm, the method comprising:

machining a circular O-ring groove on the bolt carrier about the gas hole, the O-ring groove having a larger inside diameter than an outside diameter of the gas hole;

positioning the O-ring seal within the O-ring groove, wherein the O-ring seal comprises an O-ring substantially conforming to a size, shape, and dimension of the O-ring groove; and

attaching the bolt carrier gas key to the bolt carrier.

8. The method of claim 7 , wherein the bolt carrier gas key has a substantially flat gas key surface adjacent to the gas hole whereby the gas key surface compresses the O-ring against the walls of the O-ring groove.

9. The method of claim 7 , wherein the O-ring comprises rubber.

10. The method of claim 7 , wherein the O-ring comprises a metallic.

11. The method of claim 7 , wherein the bolt carrier gas key is attached to the bolt carrier by way of at least one screw.

12. The method of claim 11 , wherein as the at least one screw is tightened, the seal is compressed within the O-ring groove between the bolt carrier and the bolt carrier gas key to form a gap-filling barrier therebetween.

13. A bolt carrier group of a firearm, comprising:

a bolt carrier with a gas hole;

a bolt carrier gas key attachable to the bolt carrier about the gas hole;

an O-ring groove disposed on the bolt carrier about the gas hole, wherein the O-ring groove comprises a circular groove disposed on the bolt carrier about the gas hole, the O-ring groove having a larger inside diameter than an outside diameter of the gas hole; and a seal disposed within the O-ring groove, wherein the seal comprises an O-ring substantially conforming to a size, shape, and dimension of the O-ring groove.

14. The bolt carrier group of claim 13 , wherein the bolt carrier gas key has a substantially flat gas key surface adjacent to the gas hole whereby the gas key surface compresses the O-ring against the walls of the O-ring groove.

15. The bolt carrier group of claim 14 , wherein the O-ring comprises rubber or a metallic.

16. The bolt carrier group of claim 13 , wherein the bolt carrier gas key is attachable to the bolt carrier by way of at least one screw.

17. The bolt carrier group of claim 16 , wherein as the at least one screw is tightened, the seal is compressed within the O-ring groove between the bolt carrier and the bolt carrier gas key to form a gap-filling barrier therebetween.