Aero Precision M4E1 Stripped Lower Receiver - Anodized Black

SKU: APAR600001C
MPN: APAR600001C
Manufactured by Aero Precision
3 Reviews


In Stock

"We ship fast!" Order by 5PM EST M-F or 12PM EST Saturday and your order ships same day. FFL items may take longer to process.


In Stock

Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal Firearm License holder.
•Current processing time can be 1-3 days.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to


Aero Precision is known for superior engineering and machining. They push the boundaries of manufacturing and challenge the status quo by constantly looking for new ways to develop and evolve.

The M4E1 Lower Receiver delivers billet aesthetics in a forged package. This enhanced forging is machined from 7075-T6 aluminum and compatible with all MIL-SPEC AR-15 parts.

A threaded bolt catch roll pin offers simpler installation of the bolt catch and virtually eliminates the possibility of damage to the receiver finish during installation (pin included). 1/16" Hex Key required for assembly. An integrated trigger guard eliminates the possibility of breaking the trigger guard tabs and an upper tension screw inserted in the grip tang of the lower receiver provides a fine tune adjustment for the fit of the upper and lower receiver.

A threaded takedown pin detent recess allows easy installation of the takedown pin detent and spring with the use of a 4-40 set screw. Increased magwell flare aids in quick and efficient magazine changes. Marked and milled to accept short-throw safety selectors, but will work with standard selectors as well.

  • Compatible with standard AR-15 components and magazines
  • Nylon tipped tensioning set screw
  • Threaded bolt catch roll pin (included)
  • Machined from 7075-T6 forged aluminum
  • Anodized black
  • Rear takedown pin detent hole is threaded for a 4-40 set screw
  • Weight: 8.61 oz


BrandAero Precision
Caliber MarkingMulti-Caliber
FinishHardcoat Anodized
Receiver Material7075-T6 Aluminum
Trigger Pin DiameterMIL-SPEC .154
Weight8.6 Oz

Ratings & Reviews

3 reviews

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My Go-To Lower


Absolutely flawless fit and finish. Mates perfectly with an Aero M4E1 upper, producing a rifle that functions with buttery smoothness, and looks great doing it. As a bonus, p-mags drop free with only a push of the mag release button.

Deluxe lower for $100 or less


This new M4E1 lower is the best you can get in a forged lower. I will build my next two rifles (Valkyrie and Faxon 3 gun) with this lower. Every hole was perfect, beautiful finish on the smooth casting and nice trigger guard. I used a matching M4E1 upper om my Grendel build. Perfect line up. Looks billet with smooth edges.


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WOW!! Aero knocked this one out of the park. The billet look for the forged lower price. This lower looks incredible and will be purchasing aero products again in the future.