17-4 PH stainless steel booster piston with a nitride finish that screws onto a threaded pistol barrel to mate the suppressor and pistol. .578x28 threads suit 45 ACP and other larger-than-9mm pistol calibers.
- Manufacturer Part # : JK155PISTON578X28BN
- Type : Booster Piston
- Material : 17-4 PH Stainless Steel
- Thread Pattern : .578"x28
- Finish : Nitride
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