AR9 80% Lower and Mil-Spec AR15 Lower Parts Kit (w/ Hammer and Trigger) | Polymer80

About this product

Build Your Own AR9 Rifle with Polymer80’s Premium Kit

Embark on your DIY firearm project with the AR9 80% lower and complete lower parts kit from Polymer80, a trusted name in the industry. This kit is engineered for enthusiasts seeking a reliable, high-performance build for 9mm caliber firearms. Crafted from 6061-T6 billet aluminum and precision-machined using CNC technology, the receiver ensures durability and exacting standards. The included mil-spec AR15 lower parts kit features laser-cut and polished components for a smooth trigger pull, enhancing your shooting experience. As a 100% Made in the USA product, you can trust in its quality and compliance.

Key Features and Specifications

• Compatibility: ONLY works with GLOCK® OEM and Elite Tactical Systems magazines.
• Material: 6061-T6 billet aluminum with Type III Hard anodized finish (mil-spec).
• Design: Enhanced, heavy-duty trigger guard and threaded bolt catch hole with included pin.
• Inclusions: AR9 ejector and full lower parts kit with hammer, trigger, pistol grip, and all necessary pins and springs.
• Origin: 100% manufactured in the United States, ensuring reliability and support for American craftsmanship.

What’s Included in the Lower Parts Kit

This comprehensive kit contains everything needed to assemble your AR-15 stripped lower receiver, including bolt catch, magazine catch, safety selector, steel hammer and trigger, pistol grip (A2 style), and all associated springs and pins. Ideal for both beginners and experienced builders, it simplifies the process while maintaining high performance.

Polymer80’s commitment to excellence means you’re getting a product backed by years of expertise in firearm components. Whether for sport, defense, or hobby, this kit delivers unmatched value and functionality. Order yours today and join the community of satisfied builders who trust Polymer80 for their AR-9 builds.