The Aero Precision AR15 Standard Lower Parts Kit (Aero Precision part no. APRH100029C) gives builders every small part needed to complete a custom AR15 lower receiver from the ground up. Every component is held to mil-spec dimensions and coating, ensuring correct fitment and reliable function once the build is assembled. The kit includes a manual thumb safety selector, an A2 pistol grip, a trigger guard, and the full complement of pins, springs, and detents needed for the fire control group and takedown hardware, making it a complete one-box solution for a mil-spec AR15 lower build.

Key Specifications

• Built to mil-spec dimensions and coating for correct component interface.
• Uses a manual thumb safety selector, the standard control layout for AR15 lowers.
• Includes an A2 pistol grip along with the grip screw and lock washer.
• Comes with a complete trigger, hammer, and disconnector set with matching springs.
• Includes the takedown and pivot pin assemblies, springs, and detents.
• Includes the bolt catch assembly with its spring, buffer, and roll pin.
• Includes the magazine catch assembly, with body, spring, and button.
• Includes a trigger guard with its roll pin for hand-protection during cold-weather use.
• Includes the buffer retainer and spring to complete the lower’s rear assembly.

Frequently Asked Questions

Does this kit include everything needed to finish a lower build? Yes, it includes the full complement of small parts, including the fire control group, safety selector, pistol grip, trigger guard, and takedown hardware.

What safety selector type is included? A standard manual thumb safety selector.

Is this kit built to mil-spec tolerances? Yes, every component is manufactured to mil-spec dimensions and coating for correct fitment.

Buy the Aero Precision AR15 Standard Lower Parts Kit

Finish your AR15 lower build with a complete, mil-spec parts set. Order from Aero Precision through our AR lower parts kits selection, with fast, direct shipping from our Lubbock, Texas gun shop.