Caliber: 5.56 NATO, 6mm ARC, 6.5 Grendel. Barrels: 16.1”, 18”, 1:8” twist rate; medium-weight contour, mid-length gas tube, M4 Feed Ramps, and 1/2x28 threaded muzzle. CNC machined LaRue Billet Match Grade Upper mated to LaRue Billet. Full-floating upper handguard with M-LOK attach points, LaRue MBT trigger. LaRue Rat Stock, machined buffer tube, birdcage flash hider installed. Comes in a compact high-impact-polymer case for easy and discreet carry. Add $100 for 6.5 Grendel chambering. SEE POLITICAL PANIC PRICING.