G-Comp 9mm 1/2x28 Muzzle Compensator - GTHM351 - Designed To Redirect Propellant Gases And Counter Recoil / Muzzle Rise - Available in 1/2 X 28 or 1/2 x 36 Thread Pitch - Includes Crush Washer - Machined Steel w/Black Nitride Finish
Determined at checkout.