Precision machined from 17-4 PH stainless steel, JKs booster piston is the component that screws onto the threaded pistol barrel, mating suppressor and pistol together. The pistons are available in 1/2x28 threads (nearly all 9mm and some other pistols) and .578x28 threads (.45 ACP and some other larger-than-9mm pistol calibers).
- Material:
- Stainless Steel
- Thread Pattern:
- .578"x28
- FireArm:
- No
- Requires FFL:
- False
- Series Description:
- Piston
