Aero Precision M5E1 Enhanced Upper Receiver Black

The Aero Precision M5E1 Enhanced Upper Receiver is a one-piece design combining the handguard mounting platform with the upper itself. Through superior engineering, Aero Precision condensed the parts needed to mount a free-floated handguard to a mere 8 screws. Since the handguard mounting surface and upper are of the same forging, not only is it a stronger system, but they were able to make additional lightening cuts to save weight and allow for more efficient cooling. Ease of installation - Simply insert your barrel assembly into the M5E1 upper, tighten it using the included barrel nut and slide your rail on and tighten the rail screws. Within minutes you have a modular, free-floated rail. Features: M4 Feedramps .2795 takedown pin holes Laser engraved T-marks Comes assembled, with dust cover and forward assist installed M5E1 Specific Details: Handguard mounting platform is forged into the receiver Works with Aero Precision M5 Enhanced Handguards Barrel nut included Torque to 65 ft. lbs. with an armorer's wrench Includes: M5E1 Upper Receiver in Anodized Black Port Door and Forward Assist installed Barrel Nut Please Note - - The M5E1 Upper Receiver is specifically designed to be used with Aero Precision M5 Enhanced Handguards. It will not work with other AR10/308 handguards.