PROOF RESEARCH 24 CARBON FIBER Barrel – 15.5 M-LOK Handguard – Elite Series Muzzle Brake – .875 Superlative Arms Adjustable Gas Block – Rifle-Length Gas System – Billet Upper/Lower Receiver – MLR BCG – MLR Charging Handle – CMC 3.5lb Single-Stage Flat Trigger – Lancer Carbon Fiber Stock – Ergo SureGrip