The M4E1 Threaded Upper Receiver features an angular machined design that helps it stand apart from standard mil-spec upper receivers. It is threaded to accept a standard AR-15 barrel nut and forged from 7075-T6 aluminum and precision machined to work with all mil-spec AR-15 parts. The M4E1 features a picatinny profile, M4 feed-ramps, and .250 take-down pin holes. NOTE: Requires dust cover, forward assist, charging handle, barrel, handguard, gas block, muzzle device, gas tube and BCG (Bolt Carrier Group) to complete.
| FireArm |
No |
| Caliber |
5.56x45mm NATO |
| Type |
Stripped |
| Receiver Finish |
Black Anodized |
| Sights |
None, Optic Ready |
| Receiver Description |
7075-T6 Aluminum |
