Sota Arms AR-10/LR-308 Rifle Lower Build Kit, Davidson Defense 6-Position Buffer Tube

Sota Arms AR-10/LR-308 Rifle Lower Build Kit with Davidson Defense 6-Position Buffer Tube

This is a complete lower build kit for AR-10 and LR-308 platforms. It includes a USA-made DPMS lower receiver, a mil-spec lower parts kit with fire control group and grip, and a Davidson. Defense 6-position buffer tube with heavy-duty components. The receiver is black anodized and serialized. You get everything needed to complete a lower receiver except the upper assembly.

Key Features

• DPMS AR-10/LR-308 lower receiver, USA-made and black anodized
• Mil-spec lower parts kit with fire control group and A2 grip included
• Davidson Defense 6-position buffer tube with heavy-duty construction
• 3.76 oz buffer weight paired with extra power chrome silicon spring
• Moly-plated and stress relieved spring for durability
• All components ready to assemble into a functional lower receiver

Perfect For

• Builders completing AR-10 or LR-308 rifle platforms
• Shooters who want mil-spec reliability and durability
• Anyone building a precision rifle or long-range setup
• Experienced builders looking for quality lower receiver components

Complete Lower Build Kit Components

This kit includes all the components needed to finish a lower receiver. You get the serialized DPMS receiver, the lower parts kit with trigger components and hammer, the selector, magazine catch, bolt catch, and all required pins and springs. The. Davidson. Defense 6-position buffer tube, buffer, and recoil spring are also included. The only thing not included is the upper assembly, which you source separately based on your caliber and configuration needs.

Davidson Defense 6-Position Buffer Tube System

The 6-position buffer tube gives you adjustability for different shooting positions and configurations. The 3.76 oz buffer weight paired with the extra power spring is engineered for AR-10 platforms, which handle heavier recoil than AR-15 rifles. The moly-plated and stress relieved spring ensures consistent cycling and long service life without premature fatigue.

Mil-Spec Quality and USA Manufacturing

The DPMS lower receiver is manufactured in the USA and finished with black anodize for corrosion resistance. Mil-spec parts throughout the kit mean you get standardized dimensions and proven reliability. This is not a budget build, it's a foundation for a serious rifle platform.

Why This Matters for AR-10 Builders

AR-10 and LR-308 platforms need heavier buffer systems than AR-15 rifles because the larger cartridges generate more recoil energy. The. Davidson. Defense 6-position tube and heavy buffer in this kit are sized specifically for those platforms. You're not adapting AR-15 parts, you're getting components engineered for the job.

Lower receiver not included. Upper assembly not included. Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.