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product code:APAR600201AC
UPC:815421022339
Brand:Aero Precision
Availability:
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The M4E1 upper receiver is a one-piece design combining the handguard mounting platform with the upper itself. It is machined from 7075-T6 aluminum with, M4 feedramps, .250 takedown pin holes, and supports barrels with a diameter up to 1". Included is a barrel nut and wrench, port door, and forward assist. NOTE: This upper is not piston-kit compatible. Requires charging handle, barrel, handguard, gas block, muzzle device, gas tube and BCG (Bolt Carrier Group) to complete.| Type | Complete Gas Impingement |
| Caliber | 223 Remington/5.56 NATO |
| Sights | None, Optic Ready |
| Barrel Length | |
| Barrel Material | |
| Twist | |
| Barrel Description | |
| Barrel Finish | |
| Receiver Description | 7075-T6 Aluminum |
| Receiver Finish | Black Hard Coat Anodized |
| Handguards | Free-Floating |
| Handguard Finish | Black Hard Coat Anodized |
| Barrel Length Range | |
