Short-Stroke Piston with 3-Position Adjustable Gas System – Free-Floating M-LOK Handguard – Rear and Side Non-Reciprocating Charging Handles – Steel Reinforced Components for High Wear Areas – Fully Ambidextrous Controls – SIG Flash Hider Compensator – Matchlite Duo Curved Trigger – CALIBER 5.56 NATO – FRAME MATERIAL ALLOY – FRAME FINISH BLACK ANODIZED – BARREL MATERIAL COLD HAMMER FORGED STEEL – BARREL FINISH FNC – MAGAZINE CAPACITY 30 ROUNDS – TRIGGER MATCHLITE DUO CURVED – OVERALL LENGTH COLLAPSED 28.5 in / EXTENDED 31.8 in – OVERALL HEIGHT WITHOUT MAGAZINE 7.9 in – OVERALL WIDTH 3.1 in – BARREL LENGTH 11.5 in – BARREL TWIST 1:7 in – WEIGHT W/MAGAZINE 7.3 lb