Davidson Defense AR-15 Ambidextrous Bolt Catch Lower Build Kit, Rare Breed FRT-15L3, Adjustable Carbine Stock

Davidson Defense AR-15 Ambidextrous Lower Build Kit with Rare Breed FRT-15L3 Forced Reset Trigger

Forged 7075-T6 aluminum lower with milled ambidextrous bolt catch slot, complete lower parts kit with ambi safety selector, heavy duty 6-position buffer tube, H3 carbine buffer, Rare Breed FRT-15L3 forced reset trigger, and adjustable carbine stock. This kit delivers precision machined components and the speed advantage of forced reset technology in one package.

Key Features

• Forged 7075-T6 aluminum serialized lower receiver with black hardcoat anodized finish and factory milled ambidextrous bolt catch slot for left and right handed operation
• Complete AR-15 lower parts kit includes ambidextrous 3-position safety selector for enhanced control from either side
• Mil-spec heavy duty 6-position carbine buffer tube paired with 5.5 oz H3 carbine buffer and spring steel carbine recoil spring for reliable cycling
• Rare Breed FRT-15L3 forced reset trigger provides safe, semi, and forced reset modes with drop-in installation using 7075 anodized aluminum and heat-treated 4140 steel construction
• Adjustable carbine stock built from nylon reinforced polymer with multiple length of pull positions for custom fit
• Includes US Tactical mil-spec receiver end plate with phosphate finish and black castle nut for secure buffer tube mounting

Perfect For

• Builders who want ambidextrous controls without aftermarket modifications
• Shooters exploring forced reset trigger technology for faster follow-up shots
• Left handed or mixed handed users prioritizing symmetrical manipulation
• Those assembling a complete lower with performance oriented components from a single kit

Ambidextrous Control Without Compromise

The milled ambidextrous bolt catch slot is machined directly into this forged lower receiver during manufacturing, not added later. Combined with the included ambidextrous 3-position safety selector, this setup provides full left and right handed functionality without requiring separate upgrades or gunsmithing. The forged 7075-T6 aluminum construction handles stress better than cast or billet alternatives while the black hardcoat anodized finish protects against wear and corrosion. This is a serialized lower receiver that forms the regulated foundation of your build.

Rare Breed FRT-15L3 Forced Reset Technology

The FRT-15L3 uses a mechanical reset system that forces the trigger forward after each shot, allowing significantly faster firing rates compared to standard semi-automatic triggers while maintaining one trigger pull per round compliance. The trigger offers three positions, safe, semi, and forced reset, giving you the option to run standard semi-auto or engage the forced reset mode when speed matters. Built from duty-grade materials including 7075 anodized aluminum and heat-treated 4140 steel, the FRT-15L3 installs like a drop-in trigger group. This is not a binary trigger and it is not full auto, it is a forced reset mechanism that dramatically increases your practical rate of fire within semi-automatic classification.

Buffer System and Stock Setup

The mil-spec heavy duty 6-position carbine buffer tube provides standard compatibility with carbine length components and offers six adjustment positions for the included adjustable carbine stock. The 5.5 oz H3 carbine buffer is heavier than standard carbine buffers, helping smooth out recoil impulse and reduce bolt velocity, especially useful when running forced reset mode or with suppressed configurations. The spring steel carbine recoil spring maintains proper tension and the US Tactical mil-spec receiver end plate with phosphate finish secures everything in place with the included black castle nut. The nylon reinforced polymer stock adjusts for different shooting positions and user preferences while keeping weight reasonable.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable laws. Verify forced reset trigger legality in your jurisdiction before use. Lower receiver is a regulated firearm component and requires proper transfer through an FFL. Trigger guard style may vary depending on current inventory.