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
- 16" 5.56 Mid-Length Gov Barrel
- Low Profile Gas Block and Mid Length Gas Tube
- 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
- Matte black hard coat anodized Mil 8625 Type 3 Class 2
- 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
Slimline 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
16" 5.56 Mid-Length Barrel Features:
- Chamber: 5.56
- Length: 16"
- Twist: 1 in 7
- Threading: 1/2"x28
- Finish: QPQ corrosion resistant finish both inside and out
- Gas System Length: Mid
- Weight: 52oz
- M4 Barrel Extension
- HP and MPI Tested
| Shipping to FFL Dealer Required | No |
|---|---|
| Made In America? | Yes |
| FFL SOT Shipping Required | No |
| Barrel Length | 16" |
| Weight(s) | - |
| Other | N/A |