CALIBER: 5.56 NATOBARREL: DIAMONDBACK BARRELS 5.56, MID-LENGTH,16″, MEDIUM, 4150 CrMov, BLACK NITRIDETWIST: 1:8 RHGAS SYSTEM: MID-LENGTH GAS SYSTEMBCG: SHOT-PEENED, MAGNETIC PARTICLE INSPECTED MIL SPEC 8620 CARRIER, LASERED LOGOUPPER: A3 FLATTOP FORGED 7075 T-6 ALUMINUM, T-MARKEDLOWER: FORGED 7075 T-6 ALUMINUM (DIAMONDBACK BLACK GOLD LOWER) W/ ENHANCED TRIGGER GUARDHANDGUARD: DIAMONDBACK 15″ M-LOK (V RAIL) W/ ANTI SLIP TEXTURE PADSGRIP: MOE-K2 GRIPSTOCK/BRACE: MAGPUL CTR STOCKMAG: GEN 2 PMAG 30RDSIGHTS:  N/AMUZZLE DEVICE: DIAMONDBACK CNC DBSB IV FLASH HIDER (1/2 X 28)TRIGGER: STANDARDWEIGHT : 6.8LENGTH (STOCK COLLAPSED): 32 3/4″LENGTH (STOCK EXPANDED): 36″