Aero Precision just introduced what looks to be one of their most practical M4E1 Complete Upper configurations yet. The M4E1 FDE, 16″ M4 Barrel, EQ-15 Handguard combo has a 16″ barrel with carbine gas, 15″ railed free-float hand guard, and it is built on their M4E1 upper receiver. This upper is available introductory pricing for $425 (BCG and charging handle not included).
Upper Receiver Features:
- Platform: AR15 M4E1
- Material: Machined from 7075-T6 forged aluminum
- Coating: FDE / Desert Cerakote finish
- M4 Feedramps
- .250” takedown pin holes
- Laser engraved T-marks
- Accepts standard AR15/M16 components
M4E1 Specific Details:
- Handguard mounting platform is forged into the receiver
- Works with Aero Precision handguards but also fits most BAR-system handguards
- Comes assembled, with dust cover and forward assist installed
- Barrel nut and wrench are included
Barrel Features:
- Chamber: 5.56
- Length: 16″
- Twist: 1 in 7
- Threading: 1/2″x28
- Material: Chrome Moly Vanadium
- Finish: QPQ corrosion resistant finish both inside and out
- Gas Block: .750
- Gas Port: .0635
- Gas System Length: Carbine
- Weight: 28oz
- M4 Barrel Extension
- HP and MPI Tested
Handguard Features:
- Length: 15″
- Series: Enhanced Quad Rail (EQ)
- Material: Machined from 6061-T6 Aluminum
- Coating: Cerakote FDE / Desert finish (more info on Cerakote)
- 6 built in QD sockets
- 1pc free float design
- Built in anti-rotation tabs
- Scalloped rails
- Continuous top rail
- 1.8″ inside diameter fits most muzzle devices and 1.5″ suppressors
Why a carbine-length gas system? Why not midlength? As far as I know, midlength is reliable while shooting a bit smoother.
Why FDE in stead of Black? There is nothing wrong with carbine gas. It’s a just a different flavor. Carbine gas will serve you well, especially when the gas port is spec’ed well.
I like the FDE. And I like the price point.