CALIBER: 5.56 NATO – BARREL: DIAMONDBACK BARRELS 5.56 MID-LENGTH16 MEDIUM 4150 CrMov BLACK NITRIDE – TWIST: 1:8 RH – GAS SYSTEM: MID-LENGTH GAS SYSTEM – BCG: SHOT-PEENED MAGNETIC PARTICLE INSPECTED MIL SPEC 8620 CARRIER – UPPER: A3 FLATTOP FORGED 7075 T-6 ALUMINUM – LOWER: FORGED 7075 T-6 ALUMINUM (DIAMONDBACK DIAMOND LOWER) W/ ENHANCED SKELETONIZED TRIGGER GUARD – HANDGUARD: DIAMONDBACK 15 M-LOK ANTI ROTATION (S RAIL) – GRIP: MOE-K2+ GRIP – STOCK/BRACE: MAGPUL ACS-L STOCK – MAG: GEN 2 PMAG 30RD – SIGHTS: PRO SIGHTS – MUZZLE DEVICE: DIAMONDBACK CNC MUZZLE BRAKE (1/2 X 28) – TRIGGER: CMC 3.5 LB SINGLE STAGE DROP IN TRIGGER – WEIGHT : 7.15 – LENGTH (STOCK COLLAPSED): 34 – LENGTH (STOCK EXPANDED): 37 1/4