FM-9 9mm 16" Belt Fed AR-15/M16 Upper Receiver — Quad Rail Handguard

FM-9 9mm Belt Fed AR-15/M16 Upper Receiver with 16" Quick Change Barrel and Quad Rail Handguard The Freedom Ordnance 9mm Belt-fed AR-15 Upper Receiver is equipped with a quad rail to attach all your accessories and a 16" quick-change barrel that allows you to easily change between different barrel lengths. It has been designed, tested, and manufactured to drop on to any mil-spec AR-15 or M16 lower receiver. A magazine block is dropped into the magazine well from the top before putting on the upper receiver. This provides an attachment point for the belt bag and houses the ejector; no tools are required. Features Heat treated and QPQ black nitride finish on all steel components for extended durability Black anodized billet aluminum components No tools required for quick-change barrel system Machined billet aluminum quad picatinny rail forend Steel receiver rails Removable bolt weight to adjust for variances between “hot” or “light” ammunition Includes: Upper receiver unit 16" quick-change barrel with handle A2 flash hider 150 round belt bag 150 heat-treated steel links Magazine block Specifications Caliber: 9x19 NATO Barrel Length: 16 in. Belt Bag Capacity: 150 rounds Operation: Disintegrating link blowback belt fed system Muzzle Thread: 1/2-28 T.P.I. standard Lower receiver, grip, and stock not included. For warranty information, contact Freedom Ordnance.