Aero Precision M4E1 Assembled Gen 2 Upper Receiver 10 Pistol Length
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Aero Precision
Overview
The Aero Precision M4E1 Assembled Gen 2 Upper Receiver is a complete upper designed specifically for AR-15 builds, featuring a 10-inch barrel optimized for the 300 Blackout caliber. With a pistol-length gas system and a 1:7 twist rate, this upper enhances stability and accuracy, making it well-suited for a variety of shooting applications, particularly in compact setups. You'll commonly find this upper in builds that prioritize maneuverability and performance in the 300 Blackout caliber.
Specifications
Aero Precision M4E1 Assembled Gen 2 Upper Receiver 10 Pistol Length
Available Merchants(4)
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Build history on GunPartPicker
Builders have been adding the Aero Precision M4E1 Assembled Gen 2 Upper Receiver 10 Pistol Length to their builds on GunPartPicker since January 2026. All time, it ranks #604 of the 1,636 upper receivers builders have added. Builds with this upper receiver are nearly all chambered in 300 Blackout, nearly all on pistol-length gas, and nearly all AR-15.
It was out of stock everywhere we track for all of August 2026, and today none of the 4 retailers we track has it in stock right now. Listed prices start at $510.99 at KY Gun Company for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 29 builds that include this one
Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom
Radian Raptor Charging Handle & Talon Safety Selector Combo - OD Green
FAXON Chameleon 5.56 Complete Nitride Bolt Carrier Group - FF556BCGCNITRIDE-NCR
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Daniel Defense Collapsible Mil-Spec Buttstock, Brown - 21-091-04179-011
Magpul AFG-2 Angled Fore Grip - Black
Builds Featuring This Part
See all 1 →Builds in the community that include the Aero Precision M4e1 Assembled Gen 2 Upper Receiver 10 Pistol Length
| Build | Parts | Total |
|---|---|---|
 | 10 | $2558.76 |
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