Details
Finish Your Lower Kit (9mm Carbine): 9mm Carbine Buffer Tube Kit + Complete Lower Parts Kit
Finish your AR-9 lower receiver with a complete lower completion package designed specifically for pistol caliber carbine (PCC) builds. This kit combines a mil-spec lower parts kit with a dedicated 9mm buffer tube assembly, providing the essential components needed to complete a reliable and smooth-functioning AR-9 platform. Built for compatibility, durability, and dependable performance, this package is ideal for new builds, upgrades, or spare parts. Whether you're assembling a range-ready PCC, competition rifle, or home-defense firearm, this kit delivers the core components necessary for a successful AR-9 build.
Key Features
- Complete mil-spec lower parts kit for AR-platform lower receivers
- Dedicated 9mm recoil system with 5.5 oz buffer
- Heavy-duty 6061-T6 aluminum 6-position buffer tube
- Includes fire control group, safety selector, magazine catch, and takedown hardware
- Compatible with most standard AR-9 and mil-spec lower receiver configurations
- Ideal for new builds, upgrades, or replacement components
Perfect For
- Completing AR-9 and pistol caliber carbine builds
- Builders assembling dedicated 9mm lowers
- Competition PCC platforms
- Home-defense and range-use carbines
- Maintaining spare lower receiver components on hand
Complete Mil-Spec Lower Parts Kit
The included lower parts kit provides all of the critical internal components required to complete a lower receiver assembly. Manufactured to mil-spec standards, the kit includes a complete fire control group, safety selector assembly, magazine release components, bolt catch hardware, takedown pins, springs, and detents. Designed for dependable operation and broad compatibility, these components offer reliable function across a variety of AR-platform builds.
Dedicated 9mm Buffer System
Designed specifically for PCC builds, the included buffer assembly features a heavy 5.5 oz 9mm buffer to help manage bolt velocity and improve reliability in blowback-operated PCC platforms. The kit includes a heavy-duty 6061-T6 aluminum carbine buffer tube, recoil spring, castle nut, and end plate, providing everything needed to complete the buffer system. The 6-position tube is compatible with most mil-spec stocks and many stabilizing braces, allowing flexibility for future customization.
Follow safe handling and manufacturer instructions. Ensure compliance with all applicable laws. Verify all components are compatible with your specific lower receiver. Inspect all parts before assembly.
