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Proven Arms offers Aero Precision AR15 lower parts built for strength and precision. From M16A4 clone lowers and AR15 stripped lowers Gen 2 to M4E1 stripped lowers, these receivers are forged, durable, and ready to be the foundation of your next AR15 build or custom project.<br>
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M4E1 Stripped Lower Receiver Aero Precision’s M4E1 stripped lower is built from 7075-T6 aluminum with a flared magwell and integrated trigger guard—strong, reliable, and ready for custom AR builds.
M4E1 Complete Lower Receiver W The Aero Precision M4E1 complete lower comes fully assembled with enhanced features like a flared magwell and integrated trigger guard—ready for your next AR build.
Description Proven Arms offers Aero Precision AR15 lower parts built for strength and precision. From M16A4 clone lowers and AR15 stripped lowers Gen 2 to M4E1 stripped lowers, these receivers are forged, durable, and ready to be the foundation of your next AR15 build or custom project.
AR15 Stripped Receiver SET The Aero Precision AR15 Stripped Receiver Set includes upper and lower receivers forged to mil-spec standards. Durable and anodized, it provides a solid, reliable foundation for any AR15 build or customization.
M4E1 Low Profile Stripped Lower Receiver The Aero Precision M4E1 Low Profile Lower features a forged design with a low-profile trigger guard and flared magwell. Durable and anodized, it’s a reliable foundation for any AR15 build.