LBE Unlimited AR15-UPK AR-15 Mil-Spec Upper Parts Kit

The LBE Unlimited AR15-UPK is an AR-15 upper parts kit designed to support the assembly or rebuild of a Mil-Spec upper receiver.

Built by LBE Unlimited to Mil-Spec tolerances for reliable drop-in function, this kit is intended for AR-15 upper receivers chambered in 5.56x45mm NATO and .223 Remington. The kit is finished in black and provides the small components needed for a standard upper build or for refreshing worn parts on an existing platform.

This is a commercial upper parts kit, not a demilled or take-down firearm set, intended for builders, gunsmiths, and enthusiasts assembling or servicing standard AR-15 upper receiver builds.