16 Cold Hammer Forged Steel Barrel - Fully Ambidextrous Controls - Low Profile Gas Block with Mid-Length Direct Impingement Gas System - SIG 2-Stage Matchlite Duo Trigger - SIG Flash Hider-Compensator - 6 Position Magpul MOE-SL Stock - CALIBER 5.56 NATO - FRAME MATERIAL ALLOY - FRAME FINISH FDE CERAKOTE - BARREL MATERIAL COLD HAMMER FORGED STEEL - BARREL FINISH FNC - MAGAZINE CAPACITY 30 ROUNDS - TRIGGER SIG 2-STAGE MATCHLITE DUO TRIGGER - OVERALL LENGTH 36.5 in - OVERALL HEIGHT 7.1 in - OVERALL WIDTH 2.75 in - BARREL LENGTH 16 in - BARREL TWIST 1:7 in - WEIGHT W/MAGAZINE 7.0 lb