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The M4E1 lower receiver delivers billet aesthetics in a forged package. This custom-designed enhanced forging is machined from 7075-T6 aluminum and compatible with all mil-spec AR15 parts. Aside from the visual upgrades, this custom-engineered design provides features that challenge much more expensive billet options and simply the assembly process for the at-home builder.
M4E1 Lower Receiver 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 girp tang of the lower receiver. This provides a tight fit with any standard AR15 upper receiver.
- Threaded Takedown Pin Detent Recess- Allows users to easily install the Takedown Pin detent and spring with the use of a 4-40 set screw. (No more launching detent 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 selections, but will work with standard selectors as well.
Manufacturer | Aero Precision |
Model | M4E1 |
UPC | 306014868453 |
SKU | APSL100505 |
Width | 4.5000 |
Length | 9.5000 |
Height | 3.0000 |
Weight | 1.0000 |