Aero Precision M4E1 Special Edition: JOD Franklin Snake Lower Receiver, Stripped




The Aero Precision M4E1 Special Edition: JOD Franklin Snake Lower Receiver, Stripped features Benjamin Franklin’s political cartoon “Join, or Die” engraved on the magwell.

This design was created in 1754 to represent the need for unification among the Thirteen Colonies, later becoming an iconic symbol leading up to & during the American Revolution.

The cartoon was used to encourage Colonists to stand together, as it was pivotal to the success of the Revolutionary War. This design remains symbolic of American pride, perseverance & unification nearly 250 years later.

The M4E1 Lower Receiver delivers billet aesthetics in a forged package. This custom designed enhanced forging is machined from 7075-T6 Aluminum & compatible with all mil-spec AR15 parts. Aside from the visual upgrades, this custom-engineered design provides that challenge much more expensive billet options.

M4E1 Lower Receiver Improvements:

  • Threaded Bolt Catch Roll Pin – Allows for simple installation of the bolt catch & 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 & 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 AR-15 upper receiver.
  • Threaded Takedown Pin Detent Recess – Allows user to easily install the Takedown Pin detent & 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 & efficient magazine changes.
  • Marked & milled to accept short-throw safety selectors, but will work with standard selectors as well.



Stripped M4E1 Lower Receiver

Nylon-tipped tensioning set screw

Threaded Bolt Catch Pin

Please add your FFL Information in the notes & have your FFL email their license to with your order number in the subject line.

We cannot process a lower receiver order without it!

Additional information


Flat Dark Earth Cerakote, Anodized Black


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