
SKU: APSL100840B
M4E1 Threaded Complete Upper, 16" .223 Wylde Mid-Length Barrel w/ 15" S-ONE M-LOK Handguard & Rearden DPB - OD Green Anodized (BLEM)
Special Price $389.99 Regular Price $750.00
This complete upper includes our S-ONE Handguard. The S-ONE line of handguards are designed with size and weight in mind, providing the perfect addition to your lightweight build. Our proprietary Aero Taper Lock Attachment System is a durable and dependable mounting platform, maintaining a slim profile while still providing the strength and stability customers have grown to love from Aero Precision handguards.
Includes:
- M4E1 Threaded Assembled Upper Receiver
- 15" S-ONE Handguard
- 16" .223 Wylde Mid-Length Barrel
- Low Profile Gas Block and Mid-Length Gas Tube
- Rearden DBP Muzzle Device
- 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 Threaded Upper Receiver Features:
- New enhanced forging that gives the upper receiver a "billet look"
- New picatinny profile that blends seamlessly with our Enhanced Series Handguards
- M4 Feedramps
- .250 takedown pin holes
- Laser engraved T-marks
- Includes port door and forward assist installed
- OD Green Anodized Finish
S-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
16" .223 Mid-Length Barrel Features:
- .223 Wylde 16" Mid-Length Barrel, 1/8 Twist
- 416R Stainless Steel
- Bead Blasted Finish
- .750 gas block journal
- Mid-Length gas system
- M4 Feed Ramp Extension
- HP and MPI tested
- Rearden DBP Muzzle Device
This product is blemished. Blemishes may include:
- Plating inconsistencies
- Pits
- Scratches
- Dents
- Flaws in finish
Our blemished products are fully functional, they just didn't meet our high standards. They are a great product at a discounted price for someone who doesn't mind a slight imperfection. We do not accept returns on blemished products.

Tang Height | No |
---|---|
Muzzle Device Pinned | No |
ATF Regulated | No |
FFL Item | No |
Made In America? | Yes |
Platform | AR15 |
Series | R-ONE/S-ONE |
Caliber | .223 Wylde |
Barrel Length | 16" |
Finish | OD Green Anodized |
Weight(s) | - |
Other | N/A |