Description

Elevate your AR-15 build with the Aero Precision M4E1 Enhanced Receiver, expertly crafted from durable 7075-T6 aluminum. This black anodized upper receiver is engineered for precision and performance, designed for .223 REM/5.56 NATO calibers. Its innovative one-piece design integrates the handguard mounting platform for a seamless look and enhanced stability. Featuring M4 feedramps and .250 takedown pin holes, it accommodates barrels up to 1″ in diameter. The package includes a barrel nut, wrench, port door, and forward assist. Please note: this upper receiver is not compatible with piston kits and requires additional components like a charging handle, barrel, handguard, gas block, muzzle device, gas tube, and BCG for completion. Perfect for enthusiasts seeking a reliable, optic-ready platform for their next build.