Davidson Defense AR-15 Rifle Lower Build Kit, Rare Breed FRT-15L3 Flat Trigger, Adaptive Tactical EX Performance Adjustable Stock

AR-15 Lower Build Kit with Rare Breed FRT-15L3 Flat Trigger and Adaptive Tactical EX Performance Stock

This complete AR-15 lower build kit combines a forged 7075-T6 aluminum serialized lower receiver with the Rare Breed FRT-15L3 flat trigger system and Adaptive Tactical EX Performance adjustable stock. The forced reset trigger delivers faster follow up shots within legal semi automatic classification, while the glass filled polymer stock provides enhanced comfort through a rubberized butt pad and adjustable length of pull. Built around a custom engraved receiver with Type III hard coat anodized finish and complete Mil-Spec buffer components including an H3 carbine buffer, this kit offers both performance and ergonomic advantages for AR-15 platform builds.

Key Features

• Rare Breed FRT-15L3 flat trigger with forced reset technology, three position ambidextrous safety selector, and drop in installation using anti walk trigger pins
• Forged 7075-T6 aluminum serialized lower receiver with custom engraving and Type III hard coat anodized black finish
• Adaptive Tactical EX Performance adjustable stock in glass filled polymer with rubberized butt pad, QD mount, and sling loop
• AR-15 Lite lower parts kit with Mil-Spec A2 grip in black
• Complete Mil-Spec buffer system including heavy duty six position carbine buffer tube, H3 carbine buffer at 5.5 oz, standard carbine recoil spring, castle nut, and receiver end plate
• Trigger constructed from 7075 anodized aluminum and heat treated 4140 steel with flat profile and ambidextrous operation

Perfect For

• Builders seeking faster shooting dynamics through forced reset trigger technology with enhanced stock comfort
• Customizers who want a complete serialized lower foundation with premium trigger and ergonomic stock system
• Shooters prioritizing recoil management through rubberized butt pad and adjustable stock configuration
• Platform builders requiring heavy H3 buffer compatibility for suppressed or overgas setups

FRT-15L3 Forced Reset Trigger System

The Rare Breed FRT-15L3 uses forced reset technology to automatically reset the trigger after each shot, allowing for faster follow up fire while requiring one trigger pull per round. The system includes a three position ambidextrous safety selector covering safe, semi automatic, and forced reset modes. Constructed from 7075 anodized aluminum and heat treated 4140 steel, the flat trigger profile provides consistent finger placement across all shooting positions. Anti walk trigger pins are included for secure drop in installation. This trigger requires a full auto compatible bolt carrier group for proper function.

Adaptive Tactical EX Performance Stock

The Adaptive Tactical EX Performance stock is constructed from glass filled polymer for strength and reduced weight compared to aluminum alternatives. The rubberized butt pad absorbs recoil energy and prevents slippage during shooting, improving control and reducing felt recoil. Adjustable length of pull accommodates different shooters and shooting positions from bench to dynamic movement. Both QD mount and traditional sling loop provide flexible attachment options for single point or two point sling configurations. The stock interfaces with Mil-Spec carbine buffer tubes for consistent fit across AR-15 pattern firearms.

Complete Buffer System and Lower Components

This kit includes a Mil-Spec heavy duty six position carbine buffer tube in aluminum with black finish, AR-15 H3 carbine buffer weighing 5.5 oz, standard carbine length recoil spring in spring steel, castle nut, and receiver end plate. The H3 buffer weight helps manage recoil impulse and can support suppressed configurations or setups with adjustable gas blocks. The Davidson Defense custom engraved lower receiver is forged from 7075-T6 aluminum with Type III hard coat anodized finish for protection against wear and corrosion. The receiver is serialized and ready for federal firearms transfer through a licensed dealer. The AR-15 Lite lower parts kit includes all internal components needed for lower function along with a Mil-Spec A2 grip in black. Buffer color may vary by production run.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable laws. The Rare Breed FRT-15L3 trigger requires a full auto compatible bolt carrier group for proper function. Lower receiver is serialized and subject to federal firearms transfer requirements through a licensed dealer. Verify current federal and state regulations regarding forced reset trigger systems before purchase. Buffer component color may vary. Trigger guard style may vary depending on current inventory.