The Advanced Tactical Compensator (or ATaC) from Schuster Manufacturing is designed to keep your muzzle down and decrease the effects of recoil. Made from billet tool steel, it is as tough as it is effective. It also has enough added length to will ensure that your 14.5" barrel will measure at least 16" after installation.
The flash hider must be permanently attached. This flash hider is pre-drilled for a pin to weld. 1/2"-28 threads.