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.
Specifications and Features:
- Type: Semi-Complete
- Caliber: 5.56x45mm NATO
- Sights: None, Optic Ready
- Receiver : 7075-T6 Aluminum
- Receiver Finish: Black Anodized
- Handguards: Free-Floating
- Handguard Finish: Black Hard Coat Anodized
WARNING
This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
www.p65warnings.ca.gov
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