This complete upper assembly is for the M153GN, Amalite’s leading series of competition rifles. This upper is lightweight and built for speed, with a low profile handguard and an adjustable gas block that allows the user to set the rifle to their ammunition preference. The free floating barrel has a length of 13.5 inches, but has a pinned and welded muzzle brake bringing the total barrel length up to 16 inches, which doesn’t make it subject to NFA requirements. In addition this upper includes a bolt carrier and charging handle.