The Armalite M15 3-Gun 12" Handguard Kit offers a competition-grade, free-floating forearm option engineered to reduce front-end mass and improve rapid muzzle tracking. This tournament-oriented system utilizes an incredibly slim profile that maximizes ergonomics and weapon manipulation comfort during intense shooting strings. The functional side and bottom KeyMod tracks provide simple mounting real estate for tactical accessories while doubling cleanly as ready-to-use flush-cup sling connection points. Included with the system are a dedicated barrel nut and matching attachment hardware to anchor the forend securely without degrading core barrel harmonics. Please note that this 12-inch lightweight rail assembly requires the use of a low-profile gas block to ensure proper mechanical clearance. Armalite M15 A2 Receiver Ext Kit - No Stock M15REKIT02