Ab Arms Ar-15 Lower Parts - Builder Kit

The Ab Arms AR-15 Lower Parts Builder Kit by American Built Arms Company is an essential collection of components designed for shooters looking to assemble a complete AR-15 lower receiver. This kit is ideal for law enforcement armorers, military-trained gunsmiths, and experienced civilian builders who require quality parts without the hassle of sourcing from multiple vendors.

This builder kit includes the necessary springs, pins, detents, and a trigger assembly to complete a functional lower assembly. The components are designed to meet modern commercial tolerances, ensuring reliability and durability during operation. The compact design, weighing just 0.22 lbs and measuring 4.2 x 0.7 x 6.8 inches, makes it easy to organize and transport.

Armorers managing fleet maintenance will appreciate the consistency and time savings this kit provides when replacing worn or damaged internals across multiple rifles. Competitive shooters and precision builders will benefit from the standardized geometry of the included components, ensuring compatibility and performance during builds.