CGS Group Piston .578x28 Black - CGS-NAU-.578X28-PIST

This piston is designed for use with the CGS Nautilus suppressor and features a .578x28 NFA thread pattern. Constructed from 17-4PH stainless steel with a nitride finish, it weighs 1.3 oz and measures 2" in overall length, making it compatible with .45 ACP caliber applications.