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Aero Precision M4E1 Magpul MOE Lower Parts Kit w/No FCG
$55.00 $53.99 Save $1.01
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Most Helpful Positive Review Aero Precision Lower Parts Kit
Can't say enough about Aero Precision products. This kit included everything I needed to complete my lower. Each part fit perfectly and had my lower assembled in no time at all. Having this offered without a trigger group is perfect for anyone wanting to include an upgraded trigger to their build. T...
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Most Helpful Negative Review Great, but not perfect!
My only complaint with the M4E1 LPK is that the rear takedown pin spring is not sized for use with the included set screw. Not that it’s that difficult to snip some off the spring the length of the set screw, but why call it an M4E1 lower parts kit if the included spring isn’t the right size for the...
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All the parts you need

by goldfish, Verified Owner from VA, United States Written on June 7, 2025
Quality parts by Aero precision. A must buy if you are building Aero receiver. It has the proprietary screw for the rear takedown pin.
Would recommend: Yes
Was it helpful to you? Yes | No

Exactly what I needed

by James, Verified Owner from TX, United States Written on April 22, 2025
This was the perfect compliment to my aero m4e1 fde lower.
Would recommend: Yes
Was it helpful to you? Yes | No

Great Parts Kit

by Ryan, Verified Owner from NJ, United States Written on January 25, 2025
Quality Parts kit, and a very comfortable grip. This is great for any mil spec lower especially if you prefer the traditional AR grip angle but want something a little more ergonomic.
Pros:
  • Quality and price
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

ANOTHER GREAT UPGRADE!!!!!

by AES Guns, Verified Owner from KY, United States Written on January 13, 2025
1. Quality & Fit
Precision-machined components: Aero Precision has a reputation for tight tolerances and consistent quality control. The parts fit smoothly into Aero’s M4E1 lower receiver and most other standard AR-15 lowers.
Machined vs. stamped parts: Small parts like pins, detents, and springs are all mil-spec or better, ensuring reliability over time.
2. Magpul Furniture
Magpul MOE Grip: Included in the kit is the well-regarded Magpul MOE pistol grip, which offers enhanced ergonomics, a comfortable grip angle, and a storage compartment.
Trigger Guard: Many kits include a standard mil-spec trigger guard, but this kit upgrades you to the more ergonomic Magpul trigger guard. It provides a bit more room for gloved hands and has smooth edges to reduce snag.
3. Ease of Installation
User-friendly design: The M4E1 lower from Aero Precision is designed to simplify the assembly process. It comes with a threaded bolt catch pin, which eliminates the risk of damaging your receiver with roll pins.
Complete set of parts: The kit includes all standard lower receiver components (excluding the trigger assembly if you’re buying a kit without the trigger). You don’t need to chase down additional small parts.
4. Performance & Reliability
Mil-spec baseline: If you’re looking for tried-and-true performance, you’ll get it. Aero’s LPK parts are at or above mil-spec standards, ensuring smooth operation and long-term durability.
Solid brand reputation: Aero Precision stands behind its pr...
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Would recommend: Yes
Was it helpful to you? Yes | No

Great product

by Captain H, Verified Owner from AL, United States Written on January 7, 2025
This is the lower parts kit I use with all my builds.
Would recommend: Yes
Was it helpful to you? Yes | No

Lower Build

by CR, Verified Owner from MN, United States Written on January 5, 2025
Parts were packaged and sealed. Assembly was straight forward and all parts fit in my Aero M4E1 lower.
Would recommend: Yes
Was it helpful to you? Yes | No

Person Build .300 black out

by Crazyhatcowboy936, Verified Owner from TX, United States Written on November 14, 2024
Purchased this lower parts kit for my build. Good quality
Would recommend: Yes
Was it helpful to you? Yes | No

Nice lower parts Kit

by David Clay, Verified Owner from MI, United States Written on October 10, 2024
Since this for the M4E1 it includes the set screw for the takedown pin. Parts fit well. Installed this on a Kodiak Brown Aero M4E1 lower
Best Used for:
  • M4E1
Would recommend: Yes
Was it helpful to you? Yes | No

Aero lower parts kit

by Randall Hollar, Verified Owner from NC, United States Written on September 19, 2024
Very pleased. Had everything I needed for my build. All of it went together very well with no problems.
Would recommend: Yes
Was it helpful to you? Yes | No

Lower parts kit

by Yosyp, Verified Owner from CA, United States Written on May 14, 2024
Have always gone with this brand and have never had issues
Pros:
  • Price, advertising
Cons:
  • Not always in stock
Would recommend: Yes
Was it helpful to you? Yes | No
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