Items Available For Purchase Today Object reference not set to an instance of an object. See All M4E1 Enhanced Upper Receiver - Anodized Black For Sale from: North State Armory | No feedback Yet View | Verified Seller View Sellers Items M4E1 Enhanced Upper Receiver - Anodized Black For Sale from: North State Armory | No feedback Yet View | Verified Seller View Sellers Items North State Armory Seller Since: Jul. 2015 Identity Verified ( Clayton, NC ) This seller is NOT an FFL City: Clayton State: NC SOLD - $134.99 Shipping: $10.00 Accepted Payment Methods: Returns: No Returns Description: The M4E1 upper receiver is a one-piece design combining the handguard mounting platform with the upper itself. Through superior engineering, Aero Precision has 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 we are 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 M4E1 upper, tighten it using the provided barrel nut and wrench, slide your rail on and tighten the rail screws. Within minutes you have a modular, free-floated rail. Features: Platform: AR15 M4E1 Material: Machined from 7075-T6 forged aluminum Coating: Matte black hard-coat anodized Mil 8625 Type 3 Class 2 M4 Feedramps .250” takedown pin holes Laser engraved T-marks Accepts standard AR15/M16 components M4E1 Specific Details: Handguard mounting platform is forged into the receiver Works with Aero Precision handguards but also fits most BAR-system handguards Comes assembled, with dust cover and forward assist installed Barrel nut and wrench are included These uppers are not piston-kit compatible Condition: New In Box Brand: AeroPrecision Item #: 940216446 Location: NC Trades Accepted: No Qty: 5 Available Share: Shipping Notes: Tracking number will be provided. Items You've Viewed Recently M4E1 Enhanced Upper Receiver - Anodized ... $134.99 SELLER: North State Armory Add To Cart