Dead Air P-Series Piston (.578-28) The P Series Piston with steel body; black cerakote finish; and 1/2"-28 tpi thread pattern. This Dead Air Piston for sale at Mister Guns is designed for compatibility with the Ghost, Primal and Wolfman suppressors. To ensure it delivers a long lifetime of reliable service, the piston with .578x28 threads has been made of high-quality steel and finished with black cerakote.

