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Aero Precision
Overview
The Aero Precision M4E1 Complete Lower Receiver comes fully assembled and ready to integrate into your AR-15 build. Constructed from durable 7075-T6 aluminum, it features a hardcoat anodized finish for enhanced resistance to wear and corrosion. With a trigger pin diameter of .154 inches, this lower receiver is compatible with standard trigger components and is designed for use with the 5.56 NATO caliber, making it a solid choice for a variety of configurations, particularly those utilizing a mid-length gas system.
Based on build data
Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger
Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers
Aero Precision Ar-15 5.56 Bcg W/c158 Bolt - Aero Logo - Phosphate
Geissele Automatics Llc Ar-15 Ssa X Lightning Bow Trigger
NcStar Pro Series Sight Front/Rear Flip Up, Black - VMARFLC
Bravo Company M16 Bolt Carrier Group Black
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger | 159 | |
| Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers | 80 | |
| Aero Precision Ar-15 5.56 Bcg W/c158 Bolt - Aero Logo - Phosphate | 69 | |
| Geissele Automatics Llc Ar-15 Ssa X Lightning Bow Trigger | 60 | |
| NcStar Pro Series Sight Front/Rear Flip Up, Black - VMARFLC | 59 | |
| Bravo Company M16 Bolt Carrier Group Black | 56 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 73.7% |
| .223 Wylde | 14.3% |
| 300 Blackout | 4.5% |
| .308 Win | 2.3% |
| 6mm ARC | 1.9% |
| .450 Bushmaster | 1.1% |
| .458 SOCOM | 0.8% |
| .350 Legend | 0.8% |
| .223 Remington | 0.4% |
| 9mm | 0.4% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 62.1% |
| Carbine | 17.8% |
| Rifle | 13.1% |
| Pistol | 6.1% |
| Intermediate | 0.5% |
| Proprietary | 0.5% |
Builds in the community that include the Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock
| Build | Parts | Total |
|---|---|---|
 | 5 | $1605.30 |
 | 14 | $2965.86 |
 | 8 | $1872.38 |
 | 16 | $4603.81 |
| 25 | $1853.36 |
| 10 | $3754.69 |
 | 6 | $941.72 |
| 13 | $1372.83 |
 | 9 | $1453.65 |
 | 6 | $1241.99 |
 | 8 | $2463.67 |
| 15 | $3882.28 |
8 global ratings
Aero M4E1 complete lower with MOE SL grip and SL-S stock arrives ready to go. Machining is precise on the receiver. Mate to my Aero upper has zero rattle. Trigger is mil-spec but easily replaceable. Solid complete lower.
Aero M4E1 complete lower with MOE SL grip and SL-S stock punches above its price tier. Anodize is consistent with my Aero upper. Trigger is mil-spec but functional. Solid base for any build, recommend it. Drop in mate to any upper.
lower ships complete with the LPK and MOE-SL stock already on, all you do is mate it to an upper. anodize is even, no thin spots near the magwell. saves a couple hours of LPK build time for anyone new to AR builds
tolerances are tight and the finish is consistent. great upgrade
M4E1 complete from Aero with the MOE SL grip and SL-S stock is the easy mode of starting a build. Everything is in spec, takedown pins detent correctly. Anodize matches my Aero upper exactly. Trigger is a basic milspec but you can drop in any aftermarket trigger easily.
Aero M4E1 complete lower with MOE SL grip and SL-S stock mates perfectly with my Aero M4E1 upper. Anodize matches between receivers. Mil-spec trigger is functional. The complete lower saves time over piecing it together yourself.
Aero Precision M4E1 complete lower with MOE SL grip and SL-S stock took about a minute to mate to an upper. Receiver is well machined. Anodize matches Aero uppers. Solid receiver for the money - a complete lower at fair pricing.
complete aero lower with MOE-SL grip and stock pre installed. saves the LPK build step. tolerances against an aero upper are tight, takedown pins slip with thumb pressure. integrated trigger guard is the standard aero touch
