Aero Precision M4E1 APAR600002C Stripped Lower Flat Dark Earth

M4E1 Lower Receiver: Precision Engineering Meets Robust Design

Introducing the M4E1 Lower Receiver, where aesthetics and functionality converge in a formidable package. Built with precision from 7075-T6 Aluminum, this receiver embodies strength while maintaining compatibility with all mil-spec AR15 parts. Its design challenges more costly billet options without compromising on quality or performance.

The M4E1 is not just visually appealing; it’s engineered for simplicity and efficiency during assembly—a boon for the home builder. Among its standout features is the threaded bolt catch roll pin, an innovation that simplifies installation and protects your finish from damage. The integrated trigger guard enhances durability by eliminating weak points common in traditional designs.

For those who demand perfection in their builds, the upper tension screw allows precise adjustment of fit between upper and lower receivers using a nylon-tipped set screw nestled within the grip tang—ensuring a snug union with any standard AR15 upper.

• Threaded Bolt Catch Roll Pin: Simplifies bolt catch installation; includes pin (requires 1/16" Hex Key).
• Integrated Trigger Guard: Reinforces structure by integrating into lower receiver design.
• Upper Tension Screw: Facilitates fine tuning of receiver fitment.
• Threaded Takedown Pin Detent Recess: Eases takedown pin detent/spring installation using a 4-40 set screw (no missing parts).
• Increased Magwell Flare: Enhances speed and reliability of magazine changes under pressure.
• Milled to accommodate short-throw safety selectors but remains compatible with standard variants as well.

M4E1 Specifications

• Platform: AR15.. . .