SPECS:

MilSpec 416 Stainless

3/4x24 Thread 

3.3 Ounces

2.5" Length

1" O.D.

.53125" Thru hole, to fit up to .5" projectiles. 

2 x .5" reliefs, for horizontal recoil reduction.

4 x .25" Front brake ports, terminating slightly below the device's center-line to prevent prone dust up and maximize vertical recoil reduction.

Comes with crush washer