T6 Firearms T90065BLK: Caliber: .223 Wylde 5.56 Match Grade - Upper Receiver: - Assembled Upper Receiver - Ambi Charging Handle - Skelton Nitride Bolt Carrier Group - Barrel: - .223 Wylde 5.56 Match Grade Nitride (TRUE 16 Overall Length barrel w/ TCS system) - Mid Length Gas Tube - Adjustible .750 Gas Block - Roll Pin - 1/2x28 TPI Thread - 1:8 Twist Rate - Built it Compensator - Lower Receiver: - Complete Lower Receiver - Flat Olympus9 3-6Lbs Trigger - NU Custom Grip - Enhanced Trigger Guard - Extended Mag Release Button - Extended Take Down Pins - Safety - Muzzle Device: Built-in Tunable Compensator System - Stock Kit: - Battlelink Extreme Duty Minimalist Stock - SRS Upgraded Silent Capture - Handguard: - 13 Aluminum Jester scalp Rail - M-LOK Style - Barrel Nut with Rail Attachment and Screws - Material: 7075 T6 Aluminum - Color: Black Armor Cerakote