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Aero Precision
Overview
The Aero Precision M4E1 Rifle Lower is a complete lower receiver designed for the AR-15 platform, featuring a hardcoat anodized finish for enhanced durability. It’s crafted from 7075-T6 aluminum, ensuring a robust structure that can withstand the rigors of use while chambering the popular 5.56 NATO caliber. This lower is often paired with a mid-length gas system, making it a reliable choice for builders looking to create a balanced rifle with optimal gas operation.
Specifications
Aero Precision M4E1 Rifle Lower Complete W/ A2 Grip
September 2026 on GunPartPicker
Aero Precision M4E1 Rifle Lower Complete W/ A2 Grip ranked #166 of the 477 lower receivers builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #266 of the 1,136 lower receivers builders have added. Builds with this lower receiver are mostly chambered in 5.56 NATO (92%), split between mid-length (55%) and carbine-length (25%) gas systems, and nearly all AR-15.
It was out of stock everywhere we track for all of September 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $294.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
Bravo Company Manufacturing 5.56 NATO Mid-Length Bhf AR-15 Barreled Upper - MCMR-15 - 16"
Radian Weapons AR-15 Raptor-SD Ambidextrous Charging Handle OD Green
Magpul AR-15 MOE Stock Collapsible Mil-Spec Black
Wilson Combat Tr-Ttu-M2 Tactical Trigger Unit
Aero Precision AR-15 5.56 BCG W/C158 Bolt - Aero Logo - Phosphate
Magpul RVG Rail Vertical Grip - Black
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all builds →Builds in the community that include the Aero Precision M4e1 Rifle Lower Complete W/ A2 Grip
| Build | Parts | Total |
|---|---|---|
 | 18 | $2020.62 |
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