Aero Precision M4E1 AR-15 Lower Receiver

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$139.99
Out of Stock

This item is regulated, therefore your entire order will be shipped to an FFL dealer of your choosing. After you place your order, we will contact you to finalize these details.

Orders will Ship within 1 Business Day
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Enhanced Forged Lower Receiver With Exceptional Functionality

The Aero Precision M4E1  enhanced forged lower receiver model delivers visual upgrades and billet aesthetics for your AR-15 build. Aero Precision custom designed this forging, and machined it from 7075-T6 aluminum. This lower features compatibility with all mil-spec AR-15 parts, and adds an improved magazine well for faster reloads.

The M4E1 features threaded bolt catch roll pin that offers a simpler installation of the bolt catch and virtually eliminates the possibility of damage to the receiver finish during installation. 1/16″ Hex Key is required for assembly.

Simplifies The Assembly Process

Aero Precision M4E1 Lower Receiver has an integrated trigger guard eliminates the possibility of breaking the trigger guard tabs. The 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.

It simplifies the assembly process for the at-home builder. The threaded takedown pin detent recess allows easy installation of the takedown pin detent and spring with the use of a 4-40 set screw. It also increased Magwell’s flare aids in quick and efficient magazine changes.

The M4E1 is marked and milled to accept short-throw safety selectors, but will work with standard selectors as well.

Features And Improvements:

  • Threaded Bolt Catch Roll Pin – Allows for simple installation of the bolt catch and virtually eliminates the chance to damage the finish during installation (pin included). 1/16″ Hex Key required for assembly.
  • Integrated Trigger Guard – Eliminates the possibility of breaking the trigger guard tabs by integrating the trigger guard into the lower, creating a stronger more rigid platform to build upon.
  • Upper Tension Screw – Allows users to fine-tune the fit of the upper and lower receiver using a nylon tipped tensioning set screw inserted in the grip tang of the lower receiver. This provides a tight fit with any standard AR15 upper receiver.
  • Threaded Takedown Pin Detent Recess – Allows the user to easily install the Takedown Pin detent and spring with the use of a 4-40 set screw (no more launching detents across the room).
  • Increased Magwell Flare – Increased the flare of the Magwell to aid in quick and efficient magazine changes.
  • Marked and milled to accept short-throw safety selectors, but will work with standard selectors as well.

Specifications:

  • Shipping to FFL Dealer Required: Yes
  • Platform: AR15
  • Material: Machined from 7075-T6 forged aluminum
  • Finish
    • Anodized: Black, OD Green, Kodiak Brown
    • Cerakote: Magpul Flat Dark Earth, OD Green, or Sniper Grey
  • Markings: “Cal Multi”, “M4-” Serial Number Designation
  • Compatibility: Works with standard AR15 components and magazines
  • Weight(s): 8.61 oz

NOTES:

  • Rear takedown pin detent hole is threaded for a 4-40 set screw.
  • Threaded Bolt Catch Roll Pin (Included).

Have Questions About this Product?


The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Aero Precision Warranty

If for any reason you have a warranty issue with one of our products, please contact us at 253-272-8188.

Please describe your situation, include your name and order number or transaction id. One of our technical specialists will then review your claim and contact you within 3-5 business days.

If you have images to send, please email them to support@aeroprecisionusa.com

Damaged Items

In regards to claims dealing with damaged or blemished products, we ask that you create a Help Desk Ticket on your My Account page. If you don’t have an account with us, please go to the Contact Us page and fill out the form for review within 72 hours upon receiving the shipment.

If you have images to send, please email them to support@aeroprecisionusa.com

Failed Background Check

There will be a 30% restocking fee on all lower receivers returned because of failed background checks.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

Customer Reviews

Based on 11 reviews
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S
Scott Sandberg
Aero Precision Build

My first build and I am very happy with Aero Precision design and quality.

Thanks for writing! We're glad you're happy with your Aero Precision M4E1 AR-15 Lower Receiver.

T
Todd Williams
At3 Rocks

Ordered a Aero Precision Lower, better price than ordering straight from Aero and received within a week other than a month it would have taken Aero’s slow slow asses…. Thanks

Thank you for the great review! We're glad to hear that you're happy with your purchase and that our prices were better than those offered by Aero Precision. We apologize for the delay in processing your order, but we're glad to have you as a customer!

M
Mrmetro
Well made & tough

These lowers are no-nonsense and for the money, they can't be beat. The fit and finish is very good. I like the one-piece trigger guard.

Thank you for the kind words! We're glad you're pleased with the quality and construction of our M4E1 AR-15 Lower Receiver.

M
Mckinley Chavous
Lower

Great sturdy receiver

Thanks for sharing your feedback! We're glad you're satisfied with your purchase.

R
Robert H
New build

Just what I ordered. Shipped fast.

Thanks for sharing your feedback! We're glad you're satisfied with your purchase.