Dead Air P Series Piston (1/2-28) The Dead Air Piston with 17-4 PH stainless steel material; black cerakote color; 1/2×28 thread pattern; and 0.13 lbs weight. Now available at Mister Guns, the Dead Air Piston, 1/2×28 (P-Series) was designed to be easily changed for different host firearms or calibers. Made of durable 17-4 PH stainless steel, this Dead Air 1/2-28 Piston for sale is compatible with the Ghost-M, Wolf-9SD or Wolfman suppressor, but NOT compatible with the Dead Air Odessa-9 suppressor.




