Luth-AR M4 Government Profile Complete Upper 5.56 14.5 Threaded Barrel

Luth-AR M4 Government Profile Complete Upper Features The Luth-AR M4 Government Profile Complete Upper is built around a 14.5 government profile barrel chambered in 5.56 NATO machined from 4150 steel for the durability and heat resistance builders expect from a duty-grade barrel. A 1:7 twist rate stabilizes a wide range of bullet weights giving the upper flexibility across common 5.56 loadings from lightweight varmint rounds to heavier match bullets. The threaded muzzle accepts standard muzzle devices letting builders add a brake flash hider or suppressor mount to suit their application. An F marked front sight base provides a correctly indexed mounting point for standard AR-15 front sight and gas block hardware. This complete upper ships as an assembled A3 upper receiver finished in a black manganese phosphate coating that provides reliable corrosion resistance across repeated use in the field or at the range. The 2-piece CAR style handguard is simple to install and gives the upper a classic lightweight profile with a carbine length gas system. Because the assembly includes a bolt carrier group and charging handle builders can mate it directly to a compatible AR-15 lower without sourcing additional internal components. This combination of a proven barrel profile durable finish and complete internals makes the Luth-AR M4 Government Profile Complete Upper a practical ready-to-install option for a new build or a barrel swap on an existing rifle. Luth-AR M4 Government Profile Complete Upper Specifications Manufacturer: Luth-AR Model: M4 Government Profile Complete Upper Type: Complete Upper Receiver Compatible Hosts: AR-15 Caliber: 5.56 NATO Barrel Length: 14.5 Barrel Material: 4150 Steel Twist Rate: 1:7 Color: Black Finish: Manganese Phosphate Includes: Bolt Carrier Group Charging Handle F Marked Front Sight Base Handguard: 2-Piece CAR Style Gas System: Carbine Length Available At: ARMSAGORA