Direct Impingement Done Right. Step UP! The LWRCI(TM) Di is made with the same craftsmanship and design excellence that comes with every LWRCI(TM) firearm. Built from the ground up to be more than just another direct impingement rifle, the LWRCI(TM) Di delivers the quality every rifle enthusiast demands with innovation that's expected from LWRCI(TM). High Performance features like fully ambidextrous controls, monoforged upper receiver with modular one-piece free float rail, LWRCI(TM) Cold Hammer Forged Nicor-treated spiral fluted barrel. Our innovative "keyless" bolt carrier design, combined with an operating system that is time-tested, makes the Di the perfect addition to the LWRCI(TM) lineup. And, since the full ambidextrous lower receiver is compatible with the rest of our IC family, you can upgrade your Di to our flagship, piston-driven IC just by switching out the upper. Step Up to High Performance- Step Up to LWRCI(TM)- DI! LWRCI(TM) DIRECT IMPINGEMENT SYSTEM LWRCI(TM) PROPRIETARY DI BOLT CARRIER GROUP LWRCI(TM) MODULAR , ONE PIECE FREE-FLOAT RAIL LWRCI(TM)ANGLED ERGONOMIC FORE GRIP W/QD SLING POINT LWRCI(TM) RAIL PANELS AND HAND STOP FULLY AMBIDEXTROUS LOWER CONTROLS: MAG RELEASE, BOLT CATCH/RELEASE, SELECTOR LWRCI(TM) ENHANCED FIRE CONTROL GROUP LWRCI(TM) A2 BIRDCAGE FLASH HIDER LWRCI(TM) AMBIDEXTROUS SLING MOUNT LWRCI(TM) AMBIDEXTROUS CHARGING HANDLE LWRCI(TM) ADJUSTABLE COMPACT STOCK MAGPULA(R) MOE+A(R)GRIP CALIBER 5.56 NATO BARREL 16.1" [40.9cm] WEIGHT 6.6lbs [2.9kg] O/A LENGTH 32""-35.25"" [81.3-89.5cm] MUZZLE THREADS 1/2 x 28 TPI RIFLING 1:7"" RH FIREARM IS TUNGSTEN GREY IN COLOR