FM-9 9mm Belt Fed AR-15/M-16 Upper Receiver — 6" Barrel

FM-9 9mm Belt Fed AR-15/M-16 Upper Receiver — 6" Barrel In-stock and shipping! The Freedom Ordnance 9mm belt-fed AR-15 upper receiver has been designed, tested, and manufactured to drop on to any mil-spec AR-15 or M-16 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 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 A2 flash hider included 150 round belt bag included 150 heat-treated steel links included Specifications Caliber: 9x19 NATO Barrel Length: 6 in. Belt Bag Capacity: 150 rounds Operation: Disintegrating link blowback belt fed system Muzzle Thread: 1/2-28 T.P.I. standard Purchase includes upper receiver unit only. Lower receiver, grip, and stock not included. For warranty information, contact Freedom Ordnance direct at freedomordnance.com/contact-us/