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.
Attributes:
Attributes:
- CALIBER/GAUGE: 5.56x45mm NATO
- DETAILED DESCRIPTION: AERO APAR600201AC M4E1 UPPER ENHANCED BLK
- HANDGUARD FINISH: Black Hard Coat Anodized
- HANDGUARDS: Free-Floating
- MANUFACTURER: Aero Precision
- MANUFACTURER ITEM #: APAR600201AC
- MODEL: M4E1
- RECEIVER DESCRIPTION: 7075-T6 Aluminum
- RECEIVER FINISH: Black Anodized
- SERIES: Enhanced Receiver
- SIGHTS: None, Optic Ready
- TYPE: Semi-Complete
- UPC: 815421022339
