Alex Pro Firearms APF AR-15 Lower Parts Kit

The Alex Pro Firearms APF AR-15 Lower Parts Kit (LP-014) is a complete collection of small components essential for assembling or servicing an AR-15 lower receiver. This kit consolidates the critical internal hardware that transforms a bare or partially finished lower into a fully functional platform, making it an economical choice for builders, gunsmiths, and operators performing lower receiver maintenance or complete assembly.

The kit includes precision-machined pins, springs, catch components, and fasteners verified by the included part list: front and rear takedown pins, hammer and trigger pins, bolt catch assembly with plunger and spring, mag catch button and spring, trigger and hammer springs, disconnector spring, takedown detent assembly, and a 1/4-28 x 1" socket head cap screw with washer. Each component is engineered to AR-15 MILSPEC tolerances, ensuring reliable function and compatibility with standard aftermarket and OEM upper assemblies. The complete kit eliminates the need to source individual parts from multiple vendors, reducing assembly time and ensuring no critical component is overlooked during lower receiver builds or repairs.

This lower parts kit serves tactical trainers, law enforcement armorers, military personnel, competitive shooters, and civilian rifle builders who require reliable component quality without premium pricing. Whether assembling a duty rifle, building a precision platform for matches, or maintaining existing inventory, this kit provides the mechanical foundation that directly affects trigger performance, bolt reliability, and overall ergonomic function. At 0.45 lbs with compact dimensions (4 x 1.4 x 8.6 in), the kit is easily stored or transported as part of a maintenance kit or spare parts inventory.

APF Armory specializes in AR-15 component kits and lower receiver parts designed to MILSPEC standards, positioning this kit within the proven ecosystem of professional-grade platform components. The bundled approach offers better value than purchasing pins, springs, and fasteners individually, while maintaining the quality control necessary for applications ranging from recreational shooting to professional duty use.