Modern compensator designed for the Glock 17 Gen4 pistol without theneed for a threaded barrel from the outside. Barrel mounted compensators add reciprocating mass and increase the moment of inertia to the operating system, which can have a negative effect on reliable cycling of recoil operated handguns. By separating the compensator from the operating components after ignition, the MD comp allows for close to stock cyclic speeds, and reduces reciprocating mass. Due to the simple design, the com