The Abyss 5.56 is the culmination of Gemtech suppressor technology to date, including key patent pending technologies designed to be the best hard use-user friendly silencers on the market. Utilizing a low back pressure design, the Abyss 5.56 minimizes gas and chemicals from running back through your rifle. An all new baffle design significantly reduces sound. Finally, the new GM-S1 end cap keeps muzzle flash to a minimum.