This AR15 Complete Upper Receiver, paired with the ATLAS R-ONE handguard streamlines the appearance of your next AR15 build by removing the Forward Assist. By combining our lightest handguards and barrel profiles with the No Forward Assist Upper Receiver you can maximize the weight savings for your next build.
Includes:
- M4E1 Threaded Assembled Upper Receiver
- 12" M-LOK ATLAS R-ONE Handguard
- 14.7" 5.56 Mid Pencil Length Barrel
- Low Profile Gas Block and Mid Pencil 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
- The muzzle brake that comes with this complete upper receiver is NOT pinned nor welded to this barrel. Per the National Firearms Act, the muzzle brake MUST be pinned and welded to achieve the necessary 16" as defined by the ATF for a rifle build.
AR15 Upper Receiver with No Forward Assist Features:
- M4 Feedramps
- .250 takedown pin holes
- Laser engraved T-marks
- No forward assist provisions
- Port door installed
ATLAS R-ONE Handguard Features:
- Full top picatinny rail for optional attachments
- Quick disconnect sling socket 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
- Learn More about our NEW ATLAS Hanguards
14.7" 5.56 Pencil Profile Mid-Length Barrel Features:
- 5.56 Nato 14.7" Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
- .625 gas block journal
- Pencil profile - light weight
- Mid-Length gas system, .0785 gas port
- M4 Feed Ramp Extension
- HP and MPI tested
- Standard A2 flash hider
| Made In America? | Yes |
|---|---|
| Aero Map Price | 348.49 |
| Platform | AR15 |
| Series | R-ONE/S-ONE |
| Caliber | 5.56 NATO |
| Barrel Length | 14.7" |
| Select Your Finish | Anodized Black |
| Weight(s) | - |
| Other | N/A |