Davidson Defense AR-15 Ambidextrous Bolt Catch Lower Build Kit, Heavy-Duty Carbine 6-Position Buffer Tube

Davidson Defense AR-15 Ambidextrous Lower Build Kit with Ambi Bolt Catch and Heavy Duty Carbine Buffer Tube

This complete AR-15 lower build kit delivers ambidextrous functionality through a milled ambi bolt catch slot with included ambidextrous bolt catch kit and ambidextrous safety selector, paired with a forged 7075-T6 aluminum serialized lower receiver. The Mil-Spec heavy duty six position carbine buffer tube provides a foundation for AR-15 rifle builds without an attached stock. Built around black hardcoat anodized finish and complete buffer components, this kit supports left and right handed operation for AR-15 platform builds requiring enhanced ambidextrous controls with flexibility for custom stock selection.

Key Features

• Forged 7075-T6 aluminum serialized lower receiver with milled ambidextrous bolt catch slot and black hardcoat anodized finish
• Ambidextrous bolt catch kit enables left and right handed bolt manipulation
• Ambidextrous safety selector allows fire control access from both sides of receiver
• Mil-Spec heavy duty six position carbine buffer tube in aluminum
• Complete buffer system including standard carbine buffer at 3 oz, carbine recoil spring in spring steel, US Tactical phosphate receiver end plate, and castle nut
• Dual ambidextrous controls support weapon manipulation regardless of shooter handedness

Perfect For

• AR-15 rifle builders requiring ambidextrous controls with flexibility to select their own stock
• Left handed shooters seeking complete serialized lower with factory ambi features and carbine buffer configuration
• Builders prioritizing weapon manipulation from either side who already own a preferred stock
• Customizers wanting ambidextrous functionality with the freedom to choose stock options separately

Dual Ambidextrous Control System

The lower receiver features a milled ambidextrous bolt catch slot that accepts the included ambidextrous bolt catch kit, allowing both left and right handed shooters to manipulate the bolt catch and release without shifting grip or reaching across the firearm. The ambidextrous safety selector extends this left and right handed functionality to fire control, enabling shooters to engage or disengage the safety from either side of the receiver. This dual ambidextrous configuration supports complete weapon manipulation regardless of shooter handedness or shooting position. The factory milled bolt catch slot eliminates the need for aftermarket machining or adapter components.

Heavy Duty Carbine Buffer Tube Configuration

The Mil-Spec heavy duty six position carbine buffer tube is engineered from aluminum for durability and consistent performance. This configuration allows builders to select their preferred carbine stock separately based on individual preferences for adjustability, weight, storage features, or specific mounting options. The six position design accommodates a wide range of Mil-Spec compatible carbine stocks from various manufacturers. The buffer tube supports standard buffer and spring components for reliable cycling.

Complete Buffer System and Lower Components

This kit includes a Mil-Spec heavy duty six position carbine buffer tube in aluminum, standard carbine buffer weighing 3 oz, AR-15 carbine recoil spring in spring steel, US Tactical Mil-Spec receiver end plate with phosphate finish for corrosion resistance and structural integrity, and castle nut in black. All buffer components meet Mil-Spec dimensional standards for consistent function across AR-15 pattern firearms. The Davidson Defense lower receiver is forged from 7075-T6 aluminum with black hardcoat 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 lower parts kit includes all internal components needed for lower function along with ambidextrous safety selector.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable laws. Lower receiver is serialized and subject to federal firearms transfer requirements through a licensed dealer. Verify compatibility of ambidextrous bolt catch with your specific upper receiver and bolt carrier group before installation. This kit does not include a stock or brace.