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Mfg Item #: APAR600201AC
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 |
|---|---|
| Series | Enhanced Upper Receiver |
| Sights | None, Optic Ready |
| Caliber | 223 rem |
| Handguards | Free-Floating |
| Handguard Finish | Black Hard Coat Anodized |
| Receiver Description | 7075-T6 Aluminum |
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