Material: 17-4 Stainless
Compatible: CF-9 and CF-45 (CF-45 pistons are not for use on CF-9 suppressors)
Diffrent threaded pistons are interchangeable with the CF-9 and CF-45 suppressor. The diffrent threads allow you to mount the suppressor on diffrent style pistols. If you are unsure about which thread you need please contact us.