Brand: Springfield Armory Model: Saint Edge ATC AR-15 Rifle Type: Rifle; Semi-Auto Caliber: 223 Wylde Color: Coyote Brown Stock: B5 Systems Coyote Brown Precision Stock Grips: B5 Systems Coyote Brown Type 23 P-Grip Handguard: Integral to ATC Chassis, M-Lok Sight: N/A Barrel Length: 18″ Ballistic Advantage, Melonite, 1:7 Safety: Single Side Upper Receiver: Forged 7075 T6 Aluminum, Type III Hardcoat Anodized, Coyote Brown Cerakote H-250, Forward Assist, M4 Feed Ramps Lower Receiver: ATC Chassis, Machined 6061 T6 Aluminum, Type III Hardcoat Anodized, Coyote Brown Cerakote H-250, QD Mounting Points Features: Direct Impingement Mid-Length, Low-Profile Pinned Gas Block, LaRue MBT Flat 2 StageTrigger, SA Muzzle Brake