DTT LR-308 Rifle Lower Build Kit with Sota Arms AR10 Lower Receiver, SBA4 Brace

DTT LR-308 Rifle Lower Build Kit with Sota Arms AR-10 Lower Receiver and SBA4 Brace

This is a complete lower build kit for AR-10 and LR-308 platforms. It includes a Sota. Arms lower receiver, SB Tactical SBA4 adjustable brace, mil-spec lower parts kit, buffer system components, and all hardware needed to assemble the lower receiver. The upper receiver is not included.

Key Features

• Sota Arms AR-10 lower receiver, black anodized finish
• SB Tactical SBA4 adjustable brace with multiple length positions
• Mil-spec lower parts kit with fire control group and trigger components
• KAK Industry chrome silicon buffer spring for AR-10 carbine systems
• LR-308 carbine buffer, 3.76 oz
• Mil-spec A2 grip, black
• Mil-spec castle nut and end plate, phosphate finish
• Six position buffer tube for brace adjustment

Perfect For

• Shooters building an AR-10 or LR-308 rifle on a budget
• Builders looking for a complete lower assembly without the upper receiver
• Those wanting a pistol brace equipped platform for short barreled configurations
• AR platform enthusiasts familiar with lower receiver assembly

Sota Arms Lower Receiver Quality

The. Sota. Arms lower receiver is machined from forged aluminum and finished in hard black anodize. The receiver maintains mil-spec dimensions for compatibility with standard AR-10 and LR-308 upper assemblies. The fire control pocket is precisely machined to accept standard AR-10 trigger groups without modification.

SBA4 Brace Adjustability

The SB Tactical SBA4 brace included with this kit features six positions for length adjustment, allowing you to dial in the fit for your shooting style and body type. The brace is quick detachable and compatible with standard mil-spec buffer tubes. Strap adjustment provides secure positioning during use.

Buffer System Specification

This kit uses a carbine length buffer system sized for AR-10 platforms. The KAK Industry chrome silicon spring is engineered for reliability in .308 caliber systems. The 3.76 oz carbine buffer is tuned for consistent cycling without excessive recoil impulse.

Lower Parts Kit and Hardware

The mil-spec lower parts kit includes all internal components required to complete the lower receiver: trigger, hammer, disconnector, selector, magazine catch, bolt catch, and required pins and springs. The castle nut and end plate are mil-spec phosphate finish from US Tactical. All hardware is standard AR-platform specification.

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