AR15 M4E1 Enhanced Upper Receiver - Anodized Black
Features: M4 Feedramps .250 takedown pin holes Lazer engraved T-marks Comes assembled, with dust cover and forward assist installed M4E1 Specific Details: Handguard mounting platform is forged into the receiver Compatible with Aero Precision Enhanced and Quantum Series handguards but also fits most BAR-system handguards Barrel nut and wrench are included These uppers are not piston-kit compatible Will support barrels with a diameter up to 1" Includes: AR15 M4E1 Upper Receiver in Anodized Black Port Door and Forward Assist installed Barrel nut Barrel nut wrench
