Firearm accessory attachment system

1. A firearm accessory attachment system, comprising:

a first body having a longitudinal length, a first flanged protrusion coupled to the first body, the first flanged protrusion extending downward from the first body, and a second flanged protrusion coupled to and extending downward from the first body, the second flanged protrusion positioned a first longitudinal distance from the first flanged protrusion;

a second body having a third flanged protrusion coupled thereto, the third flanged protrusion extending downward from the second body, the second body movably coupled to the first body and slidable in a transverse direction relative to the first body; and

an actuator configured to move the system between a locked configuration having a first envelope flange width defined by the first and third flanges and an unlocked configuration having a second envelope flange width, the second envelope flange width less than the first envelope flange width.

2. The system of claim 1 , further comprising:

a positioning protrusion coupled to and extending downward from at least one of the first or second bodies.

3. The system of claim 2 , wherein:

the first flanged protrusion has a curved proximal surface;

the system has a fourth flanged protrusion having a curved proximal surface; and

the positioning protrusion is positioned between the first and second flanges, and has a curved distal surface.

4. The system of claim 3 , wherein:

the positioning protrusion is coupled to the first body.

5. The system of claim 1 , wherein:

the first flanged protrusion has a curved proximal surface; and

the system has a fourth flanged protrusion having a curved proximal surface.

6. The system of claim 1 , further comprising:

a fourth flanged protrusion coupled to and extending downward from the second body, the fourth flanged protrusion positioned a second longitudinal distance from the third flanged protrusion, the second longitudinal distance different from the first longitudinal distance.

7. The system of claim 1 , wherein:

the actuator is actuated by at least one of rotation, camming, or sliding.

8. The system of claim 1 , wherein the actuator comprises:

at least one of a cam lever mounted on the first body, a biasing element, a releasable ratcheting mechanism, a permanent ratcheting mechanism, a cam lobe, or a wedge actuated by a lever or knob.

9. The system of claim 1 , further comprising:

at least one of a travel stop, or a thread disengagement feature, to limit movement of the system to movement between and including the locked and unlocked configuration.

10. The system of claim 1 , wherein

the system is biased towards one of the locked configuration or the unlocked configuration.

11. The system of claim 1 , wherein the actuator is configured to be actuated by hand.

12. A method of using a firearm accessory attachment system, the method comprising:

providing a firearm accessory attachment system, comprising: a first body having a longitudinal length, a first flanged protrusion coupled to the first body, the first flanged protrusion extending downward from the first body, and a second flanged protrusion coupled to and extending downward from the first body, the second flanged protrusion positioned a first longitudinal distance from the first flanged protrusion; a second body having a third flanged protrusion coupled thereto, the third flanged protrusion extending downward from the second body, the second body movably coupled to the first body and slidable in a transverse direction relative to the first body; and an actuator;

operating the actuator to move the system between a locked configuration having a first envelope flange width defined by the first and third flanges and an unlocked configuration having a second envelope flange width, the second envelope flange width less than the first envelope flange width.

13. The method of claim 12 , further comprising:

providing a positioning protrusion coupled to and extending downward from at least one of the first or second bodies, wherein the first flanged protrusion has a curved proximal surface, the fourth flanged protrusion has a curved proximal surface, the positioning protrusion is positioned between the first and second flanges, and the positioning protrusion has a curved distal surface;

causing the first, second, and positioning protrusions to engage a first side wall of an elongated slot in a firearm; and

causing the third flanged protrusion and a fourth flanged protrusion coupled to the second body to engage a second side wall of the elongated slot, the second side wall opposing the first side wall.

14. The method of claim 13 , further comprising:

causing a proximal portion of the first flanged protrusion to engage a curved surface in a first elongated slot in a firearm;

causing a proximal portion of the fourth flanged protrusion to engage a curved proximal surface in a second elongated slot in a firearm.

15. The method of claim 12 , further comprising:

providing a fourth flanged protrusion coupled to and extending downward from the second body, the fourth flanged protrusion positioned a second longitudinal distance from the third flanged protrusion, the second longitudinal distance different from the first longitudinal distance.

16. The method of claim 12 , further comprising:

at least one of rotating, camming, or sliding the actuator to move the system between the locked configuration and the unlocked configuration.

17. The method of claim 12 , further comprising:

biasing the system towards one of the locked configuration or the unlocked configuration.

18. The method of claim 12 , further comprising:

manipulating the actuator by hand.

19. The method of claim 12 , further comprising:

moving the first and third flanged protrusions into or out of a first elongated slot in a firearm; and

moving the third flanged protrusion into or out of a second elongated slot in the firearm.

20. A method of making a firearm accessory attachment system, comprising:

providing a first body having a longitudinal length, a first flanged protrusion coupled to the first body, the first flanged protrusion extending downward from the first body, and a second flanged protrusion coupled to and extending downward from the first body, the second flanged protrusion positioned a first longitudinal distance from the first flanged protrusion;

providing a second body having a third flanged protrusion coupled thereto, the third flanged protrusion extending downward from the second body, the second body movably coupled to the first body and slidable in a transverse direction relative to the first body; and

providing an actuator configured to move the system between a locked configuration having a first envelope flange width defined by the first and third flanges and an unlocked configuration having a second envelope flange width, the second envelope flange width less than the first envelope flange width.