LBE Unlimited AR-15 Upper Parts Kit Features The LBE Unlimited AR-15 Upper Parts Kit is built around two core assemblies that are easy to overlook until they are missing. The forward assist assembly lets the shooter manually seat the bolt carrier group when needed a small failsafe that matters in the field or on the range. The ejection port door assembly keeps debris and moisture out of the action when the rifle is not firing protecting the internals from the elements. Together these six pieces complete the upper half of a build without forcing the buyer to source parts individually. LBE Unlimited manufactures its components domestically supporting American jobs while holding to consistent quality standards across its catalog. The company s broader lineup from upper receivers to barrels and buffer tubes is built to the same mil-spec tolerances this kit follows so pieces purchased separately still fit together cleanly. This kit suits a builder finishing a first AR-15 upper or anyone replacing a lost or damaged forward assist or ejection port cover. For sale at GrabAGun it is a straightforward way to round out a build without hunting down individual small parts. LBE Unlimited AR-15 Upper Parts Kit Specifications Manufacturer: LBE Unlimited Model: AR-15 Upper Parts Kit Caliber: 5.56 NATO / .223 Rem Color: Black No. of Pieces: 6 Includes: Forward Assist Assembly Ejection Port Door Assembly Available At: GrabAGun