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| Sun | by appointment |
| Mon | by appointment |
| Tue | 3-6pm |
| Wed | 3-6pm |
| Thu | 3-6pm |
| Fri | 3-6pm |
| Sat | 9am-5pm |
Mfg Item #: APAR700201C
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 AR15 barrel nut and forged from 7075-T6 aluminum and precision machined to work with all mil-spec AR15 parts. The M4E1 features a picatinny profile, M4 feedramps, and .250 takedown pin holes. This model has a black hardcoat anodized finish. NOTE: This model does not include port door or forward assist.
| Type | Stripped |
|---|---|
| Series | Stripped Upper Receiver |
| Sights | None, Optic Ready |
| Caliber | 223 Remington/5.56 NATO |
| Receiver Description | 7075-T6 Aluminum |