MCR BELT-FED UPPER RECEIVER FULL AUTO

KEY FEATURESDrop-On Upper Receiver Assembly that upgrades your AR15/M16/M4 type lower receivers or rifles5.56 x 45mm NATO16.25" Quick-Change Barrel1:7" RHT, A 1/2"-28 TPI Short-Stroke Gas Piston OperationDual-Feed(TM) - Accepts ALL AR15/M16 Magazines & M27 Linked AmmunitionPrecision Machined 7075-T6 Billet Upper Receiver, Feed Cover and Charging HandlePrecision Machined Billet Steel Feed Tray Finish - Manganese Phosphate & Type III, Class 2 Hardcoat anodize - BlackFull-Auto Bolt CarrierHandguard Style - MIL-STD 1913 Rail, Round PatternAdjustable Sight SetQuick-Change Barrel HandleShips with Main Action Spring, Bolt Catch, Carbine Stock Spacer, (100) M27 Links & Operator's ManualMade In USA