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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.
| UPC | 815421023756 |
|---|---|
| Manufacturer | Aero Precision |
| Manufacturer Part Number | APAR700201C |
| Length | 8.7500 |
| Product Type | Stripped |
| Sights | None, Optic Ready |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Style | Stripped |
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