Davidson Defense AR-15 Ambidextrous Bolt Catch Lower Build Kit, Rare Breed FRT-15L3 Flat Trigger, Mil-Spec Enhanced Stock

Davidson Defense AR-15 Ambi Bolt Catch Lower Build Kit - Rare Breed FRT-15L3 Flat Trigger and Mil-Spec Enhanced Stock

This lower build kit is built around a serialized Davidson Defense forged 7075-T6 aluminum lower receiver with a black hardcoat anodized finish and a milled ambidextrous bolt catch slot. It includes a Rare Breed FRT-15L3 flat forced reset trigger and a Mil-Spec enhanced stock with an adjustable cheek riser and recoil dampener suspension system.

Key Features

• Serialized Davidson Defense forged 7075-T6 aluminum lower receiver with black hardcoat anodized finish
• Milled ambidextrous bolt catch slot with included ambi bolt catch kit
• AR-15 lower parts kit with ambidextrous 3-position safety selector
• Rare Breed FRT-15L3 flat forced reset trigger in 7075 anodized aluminum and heat-treated 4140 steel with anti-walk trigger pins
• Drop-in trigger fitment with ambidextrous orientation and safe, semi, and forced reset modes
• Full-auto compatible BCG required for forced reset trigger function
• Mil-Spec heavy-duty 6-position carbine buffer tube in aluminum
• AR-15 H3 carbine buffer at 5.5 oz with spring steel recoil spring
• US Tactical phosphate-finished mil-spec receiver end plate and black castle nut
• Mil-Spec enhanced stock with adjustable cheek riser, recoil dampener suspension system, and rubberized recoil pad

Perfect For

• AR-15 builders seeking a serialized lower kit with ambidextrous controls
• Builders pairing this kit with a full-auto compatible BCG for forced reset trigger use
• Left-handed and cross-dominant shooters requiring ambi bolt catch and safety selector
• Shooters prioritizing a flat trigger profile in a complete lower build package

Davidson Defense Serialized Lower Receiver

The lower receiver is forged from 7075-T6 aluminum with a black hardcoat anodized finish. It ships serialized and includes a milled ambidextrous bolt catch slot as a factory receiver feature. The included ambi bolt catch kit and AR-15 lower parts kit with ambidextrous 3-position safety selector round out the lower control set.

Rare Breed FRT-15L3 Flat Forced Reset Trigger

The Rare Breed FRT-15L3 is a flat-profile forced reset trigger with three modes, safe, semi, and forced reset. It uses a drop-in design with ambidextrous orientation and includes anti-walk trigger pins. Construction uses 7075 anodized aluminum and heat-treated 4140 steel. A full-auto compatible BCG is required for forced reset trigger function and is not included in this kit.

Mil-Spec Buffer System and Stock

The kit includes a Mil-Spec heavy-duty 6-position carbine buffer tube in aluminum paired with an AR-15 H3 carbine buffer at 5.5 oz and a spring steel recoil spring for AR-15 carbine compatibility. The US Tactical mil-spec receiver end plate carries a phosphate finish and is paired with a black castle nut. The Mil-Spec enhanced stock features an adjustable cheek riser, recoil dampener suspension system, and rubberized recoil pad.

Ambidextrous Control Configuration

The kit includes both an ambi bolt catch kit and an ambidextrous 3-position safety selector. The milled ambidextrous bolt catch slot is a factory feature of the Davidson Defense serialized lower receiver. The Rare Breed FRT-15L3 trigger also ships in an ambidextrous orientation.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. This kit includes a serialized lower receiver. Verify applicable transfer and compliance requirements before purchase. A full-auto compatible BCG is required for forced reset trigger function and is not included.