The Tyrant Designs® Gen 4 T-Comp Compensator for Glock® 19 pistols is a performance-enhanced muzzle device, designed to deliver reduced felt recoil and muzzle flip for faster follow-up shots and quick, intuitive target acquisition. This 2-piece compensator easily installs on any ½-28 threaded G19 barrel, without the need for cumbersome set screws using a simple 16mm wrench (included). Once attached to your Gen 4 Glock 19 (not included), this compensator won’t come loose, move, or twist for reliable performance. Functions with most 9mm ammo. Made in USA.