All of the breakthrough features of the original MCX-Rattler now in a more modular more capable package. Designed to meet the needs of Special Operations forces the MCX-Rattler LT features fully ambidextrous controls including an ambidextrous bolt-catch bolt-release an adjustable gas piston for suppressed and unsuppressed use and is fitted with the SIG QD suppressor-ready flash-hider and a flat-blade trigger for ultimate control. The MCX-Rattler LT also has either a cold hammer forged 6 or 7 3/4 barrel and is now fully compatible with all MCX barrels and handguards making it the ultimate modular package. Available in 300 blackout 5.56 NATO as well as 7.62X39 calibers. – 6.75in or 7.75in cold hammer forged barrel for ultra compact design – Fullly ambidextrous controls – Interchangable barrels now compatible with all LT barrels and handguards – SIG Flatblade match trigger – SIG SLX/SLH suppressor-ready flash hider – CALIBER 7.62×39 – MAGS INCLUDED (1) 28rd Steel Mag – MAG TYPE AR-15 [7.62X39] – ACTION TYPE Semi-Auto – BARREL MATERIAL Cold Hammer Forged Carbon Steel – TRIGGER TYPE 2-Stage Match – TWIST RATE 1:9.5 – GRIP TYPE PDW – OVERALL LENGTH 17.5 in [444.5 mm] – OVERALL WIDTH 2.25 in [57.2 mm] – HEIGHT 7.4 in (187.2 mm) – ACCESSORY RAIL M1913 – OPERATING SYSTEM Short-Stroke-Piston – WEIGHT 5.5 lbs (2.5 kg)