AR9 80% Lower Fire/Safe Marked – 9mm – Billet Raw | Polymer80
Specs at a glance
About this product
AR9 80% Lower Receiver: Build Your Custom 9mm AR with Polymer80
Introducing the dedicated 9mm 80% lower receiver from Polymer80, expertly CNC-machined from 6061-T6 billet aluminum for superior strength and precision. This raw, unfinished receiver allows you to apply a custom finish, making it ideal for personalized builds. Featuring enlarged mag well ramps for quick reloads and compatibility with GLOCK® OEM and Elite Tactical Systems magazines, it’s designed for reliability and performance in 9mm Parabellum applications. With fire/safe markings and a 100% mil-spec fit, this receiver is a top choice for DIY enthusiasts and professionals alike.
Technical Specifications
- Caliber Compatibility: 9mm Parabellum
- Material: Billet 6061-T6 Aluminum
- Finish: Raw (Uncoated)
- Color: Matte Black (Post-finishing)
- Fitment: 100% Mil-Spec
- Engraving: Fire/Safe Markings Included
- Features: Integrated trigger guard, flared magwell, GLOCK® magazine compatibility
- Origin: 100% Made in the USA
Compatibility and Assembly
This lower is compatible with standard AR-15 lower parts kits and buffer tubes, though a heavier buffer is recommended for reduced recoil in 9mm builds. For assembly, you’ll need a lower parts kit, buffer tube kit, and an upper assembly. Polymer80 provides extensive resources, including step-by-step guides and FAQs, to support your build process and ensure compliance with regulations.
Why Choose Polymer80?
With years of expertise in firearm components, Polymer80 delivers high-quality, American-made products that empower builders to create custom firearms safely and legally. Our commitment to innovation and customer support makes us a trusted name in the industry.
What's in the box
- AR9 80% Lower Fire/Safe Marked – 9mm – Billet Raw | Polymer80