Aero Precision M4E1-T 16″ Mid-Length Upper Receiver w/ 15″ M-LOK ATLAS S-ONE Handguard (APAR712105M7), No Forward Ass. Loaded with tons of premium features and optimization for the ultimate AR-15 custom workshop build chambered in .223 Rem and 5.56x45mm. This complete mid-length upper set-up offers custom enhanced forged construction with M4 feedramps, front and rear Picatinny rail, port door assembly, M-LOK attachment points, A2 flash hider, and more. This upper does not include a BCG or charging handle.
M4E1 THREADED, NO FORWARD ASSIST UPPER RECEIVER FEATURES:
- No Forward Assist
- Custom enhanced forging that gives the upper receiver a “billet look” while maintaining the structural integrity of a forged part.
- Picatinny profile that blends seamlessly with our Enhanced and ATLAS Series Handguards
- M4 Feedramps
- .250 takedown pin holes
ATLAS S-ONE HANDGUARD FEATURES:
- Front and rear picatinny rail
- Eliminated center of top rail for weight reduction
- Indexing grooves in 12:00 position for positive grip control
- Quick disconnect sling socket at the 3, 6 and 9 o’clock positions
- 1.3″ Inside diameter
- 1.5″ Outside diameter
- Compatible with mil-spec AR15 upper receivers and barrels
- MLOK attachment points
16″ 5.56 BARREL FEATURES:
- 5.56 NATO 16″ Barrel, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
- .750 gas block journal
- Mid-length gas system, .0785 gas port
- M4 Feed Ramp Extension
- HP and MPI tested
- Standard A2 flash hider
WHAT’S IN THE BOX?
- M4E1 Threaded Upper Receiver, No Forward Assist
- 15″ ATLAS S-ONE Handguard
- 16″ 5.56 CMV Barrel
- Low Profile Gas Block and Mid-Length Gas Tube
- Port Door Assembly
- A2 Flash Hider
- This complete upper receiver does not include BCG or Charging Handle.