POF 11T 223 Rem/5.56 NATO 14.5" Heavy Barrel w/Muzzle

The 11T model upper receiver is an 11" MRR (Modular Railed Receiver) , a two-piece upper receiver with a free-floating monolithic rail and handguard precisely interfacing with the reinforced backbone receiver taking stress away from the bolt area and eliminating flex at points of stress, strengthening the entire upper. The 11T 223 upper is black anodized and compatible with standard AR and mil-spec lower receivers. In 14.5" and 16.5" barrel lengths, each has a 1.5" muzzle brake (permanently-attached on the 14.5"). Barrels are made of 4150 chrome-moly-vanadium alloy and are Nitride heat-treated for corrosion-resistance. These fluted, polygonal barrels have heavy contour and hand-lapped button twisted rifling. The semi-automatic receiver houses a regulated gas piston system chambered in 5.56x45mm NATO (.223 Rem) weighing in at just over 5 lbs. It has en oversized heat sink barrel nut. The 11T model's tactical rail is designed for high-accessory use featuring a free-floating handguard with a monolithic top rail system made of 7075-T6 aluminum alloy. The Tactical rail has a full top and bottom rail as well as longer side rails for flashlights, vertical grips, sights, optics, and other essential items used in tactical operations and competition shooting. Combined, the length of this MRR with the barrel is 21.75" or 23.75."