Collapsible reflective sight for a firearm

1. A collapsible reflective optical sight for a firearm, comprising:

a base configured to mount the optical sight to a firearm;

a lens attached to and able to rotate with respect to the base, wherein the lens includes a first optic with a reflective surface, and the lens is able to be folded with respect to the base for storage in a collapsed configuration and angled with respect to the base in a deployed configuration for use in aiming the firearm;

a light source on the base to reflect a light off the reflective surface of the first optic to a user for aiming the firearm; and

a mechanical sight integral with the base for aiming the firearm.

2. The collapsible reflective optical sight of claim 1 , wherein

the lens includes a frame to retain and support the optic; and

the frame includes sides that extend perpendicular or substantially perpendicular to the optic, wherein a portion of one of the sides extends below a top portion of the base when in the collapsed and the deployed configurations.

3. The collapsible reflective optical sight of claim 1 , further comprising a hood rotatably mounted to the base and in continuous communication with an upper portion of the lens; wherein the hood folds over the lens in the collapsed configuration and is angled from the base to the upper portion of the lens in the deployed configuration.

4. The collapsible reflective optical sight of claim 3 , further comprising a spring in communication with the hood and the base to assist the hood in moving from the collapsed configuration to the deployed configuration.

5. The collapsible reflective optical sight of claim 3 , further comprising a release switch in communication with the hood to lock the lens and hood in the collapsed configuration for storage and to release the lens and hood from the collapsed configuration into the deployed configuration.

6. The collapsible reflective optical sight of claim 3 , wherein

the upper portion of the lens is guided in a track in the hood during movement to an end position in both the deployed and collapsed configurations; and

the hood secures the lens in place with respect to the hood in the deployed configuration.

7. The collapsible reflective optical sight of claim 3 , wherein

the upper portion of the lens rotates with respect to the hood, and

a lower portion of the lens is guided in a track in the base during movement to an end position in both the deployed and collapsed configurations, and

the base secures the lens in place with respect to the base in the deployed configuration.

8. The collapsible reflective optical sight of claim 1 , further comprising an adjustable boresight.

9. The collapsible reflective optical sight of claim 1 , further comprising a second optic in a light path between the light source and the first optic.

10. The collapsible reflective optical sight of claim 1 , further comprising a cover to cover the lens.

11. The collapsible reflective optical sight of claim 10 , wherein the cover is photochromic.

12. The collapsible reflective optical sight of claim 1 , further comprising a reticle in the first optic.

13. The collapsible reflective optical sight of claim 1 , wherein the base is configured to mount the collapsible reflective optical sight to a rail of the firearm.

14. A collapsible reflective optical sight for a firearm, comprising:

a base including a plurality of pieces configured to mount the sight to a firearm;

a lens attached to and able to rotate with respect to the base, wherein the lens includes a first optic with a reflective surface, and the lens is able to be folded with respect to the base for storage in a collapsed configuration and angled with respect to the base in a deployed configuration for use in aiming the firearm;

a light source mounted to the base to reflect a light off the reflective surface of the first optic to a user for aiming the firearm; and

a mechanical sight integral with the base for aiming the firearm.

15. The collapsible reflective optical sight of claim 14 , further comprising a hood rotatably mounted to the base and in communication with an upper portion of the lens; wherein the hood folds over the lens in the collapsed configuration and is angled from the base to the upper portion of the lens in the deployed configuration.

16. The collapsible reflective optical sight of claim 15 , further comprising a release switch in communication with the hood to lock the lens and the hood in the collapsed configuration for storage and to release the lens and hood from the collapsed configuration into the deployed configuration.

17. The collapsible reflective optical sight of claim 14 , wherein one of the plurality of pieces of the base includes a battery compartment that holds a battery that powers the light source.

18. The collapsible reflective optical sight of claim 14 , wherein the base mounts the collapsible reflective optical sight to an adapter plate.

19. A collapsible reflective optical sight for a firearm, comprising:

a firearm;

a base configured to mount the optical sight to the firearm;

a lens attached to and able to rotate with respect to the base, wherein the lens includes a first optic with a reflective surface, and the lens is able to be folded with respect to the base for storage in a collapsed configuration and angled with respect to the base in a deployed configuration for use in aiming the firearm;

a light source on the base to reflect a light off the reflective surface of the first optic to a user for aiming the firearm; and

a mechanical sight integral with the base for aiming the firearm.

20. The collapsible reflective optical sight of claim 19 , further comprising a battery under a slide of the firearm to power the light source.

21. The collapsible reflective optical sight of claim 19 , wherein the base is configured to be integrated into a slide of the firearm.