The BCM M4 Upper Receiver Assembly from Bravo Company, coded BCM4URM4, is crafted with unerring precision in adherence to the strictest of Mil-Specs. It is created from strong 7075 T6 forgings extension, promising unparalleled resilience in instances of accidental falling or performing mortaring malfunction clearance drills.This assembly is equipped with a Mil-Standard 1913 Rail, giving users the capability to easily mount optics and other accessories. Additionally, it hosts a Mil-Spec forward assist that is duly fortified by heat treated tool steel pawl, press fit and pinned cap. The product further boasts of a hard coat anodized finish, enhancing its overall appearance and durability.