Aero Precision M4A1 clone lower fits tight to a M4 spec upper with no detectable play at the takedown pin lugs. Cerakote colt gray is consistent. Authentic M4A1 markings are clean. Solid base for an authentic-style clone build.





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Aero Precision
Overview
The Aero Precision M4a1 Clone Lower Receiver is a stripped lower designed for the AR-15 platform, ready for you to build your custom rifle. It is compatible with the 5.56 NATO caliber and features a trigger pin diameter of .154, making it a versatile choice for various trigger options. This lower receiver commonly appears in builds utilizing a mid-length gas system, providing a balanced shooting experience.
Based on build data

CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B

Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger

Strike Industries Extended Bolt Catch

B5 Systems Trigger Guard ATG-001-01

Bravo Company Ar-15/m16 Bcm Mil-Spec 6 Position Receiver Extension

Timber Creek Outdoors Ambidextrous Safety Selector - Black
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B | 69 | |
| Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger | 63 | |
| Strike Industries Extended Bolt Catch | 58 | |
| B5 Systems Trigger Guard ATG-001-01 | 56 | |
| Bravo Company Ar-15/m16 Bcm Mil-Spec 6 Position Receiver Extension | 54 | |
| Timber Creek Outdoors Ambidextrous Safety Selector - Black | 52 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 86.7% |
| 300 Blackout | 13.3% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 76.9% |
| Pistol | 15.4% |
| Carbine | 7.7% |
Builds in the community that include the Aero Precision M4a1 Clone Lower Receiver
| Build | Parts | Total |
|---|---|---|
![]() | 12 | $639.10 |
![]() | 12 | $974.49 |
![]() | 14 | $981.56 |
![]() | 22 | $2090.38 |
![]() | 17 | $780.28 |
![]() | 12 | $2971.84 |
![]() | 31 | $2660.49 |
![]() | 26 | $1830.41 |
![]() | 14 | $2279.00 |
![]() | 27 | $2187.57 |
![]() | 30 | $4944.09 |
![]() | 20 | $974.93 |
7 global ratings
Aero Precision M4A1 clone lower fits tight to a M4 spec upper with no detectable play at the takedown pin lugs. Cerakote colt gray is consistent. Authentic M4A1 markings are clean. Solid base for an authentic-style clone build.
Aero M4A1 clone lower mates perfectly with my BCM upper. Authentic M4A1 markings on the magwell are sharp. Cerakote colt gray is consistent. Standard mil-spec dimensions accept any parts kit. Solid clone build base.
Aero Precision M4A1 clone lower has the cerakote in colt gray. Cerakote is slightly thicker than expected which made the initial mate to my upper tight - eased after a few cycles. Authentic M4A1 markings are nicely applied.
Aero M4A1 clone lower exceeds expectations for the price. Authentic M4A1 markings on the magwell. Cerakote colt gray is consistent. Recommend it for any clone build. Standard mil-spec dimensions accept all parts kits.
Aero Precision M4A1 clone lower has anodize that varies slightly from my Aero upper in direct light. Mate is tight at the takedown pins with no rattle. Quality forging. Authentic M4A1 markings are sharp.
aero M4A1 clone lower with the correct markings for a clone build. tolerances are tight against an aero upper, takedown pins slip with thumb pressure. anodize is even across the receiver
Aero M4A1 clone lower is better than I expected for the price. Authentic M4A1 markings are sharp. Cerakote colt gray is consistent. Standard milspec dimensions. Mate to my BCM upper has minimal play. Recommend for clone builds.