This complete upper receiver features the same tried-and-true construction and aesthetics as our M4E1 Threaded Upper Receivers, without provisions for a forward assist.
INCLUDES:
- M4E1 Enhanced Assembled Upper Receiver
- 8" 5.56 Pistol Length Gov Barrel
- Low Profile Gas Block and Pistol Length Gas Tube
- 7.3" R-ONE Handguard
- Product comes assembled
- This complete upper does not include BCG or Charging Handle. These products may be selected as add-ons under the Finish Your Build tab
M4E1 UPPER FEATURES:
- Forged from 7075 T6 aluminum
- Precision machined to M4E1 specs
- M4 feedramps
- Available in Anodized or Cerakote Finishes
- Laser engraved T-marks
- Comes assembled, with port door and forward assist installed
- Accepts standard AR15/M16 components
- Handguard mounting platform is forged into the receiver
- Works with Aero Precision handguards but also fits most BAR-system handguards
- Barrel nut and wrench are included
R-ONE HANDGUARD FEATURES:
- Full top picatinny rail for optional attachments
- Full length MLOK attachment points at the 3, 6, and 9 o'clock positions
- Compatible with low profile gas blocks
- 1.3" Inside diameter
- 1.5" Outside diameter
- Compatible with mil-spec AR15 upper receivers and barrels
8" 5.56 PISTOL LENGTH BARREL FEATURES:
- Chamber: 5.56
- Length: 8"
- Twist: 1 in 7
- Threading: 5/8"x24
- Finish: QPQ corrosion resistant finish both inside and out
- Gas System Length: Pistol
- M4 Barrel Extension
- HP and MPI Tested
| Made In America? | Yes |
|---|---|
| Platform | AR15 |
| Series | M4E1 |
| Caliber | 5.56 NATO |
| Barrel Length | 8" |
| Select Your Finish | Anodized Black |
| Weight(s) | - |
| Other | N/A |