LANTAC USA M-SPEC AR-15 Lower Parts Kit

The LANTAC USA M-SPEC AR-15 Lower Parts Kit is a complete mil-spec component set engineered to assemble or service an AR-15 lower receiver. Manufactured to LANTAC USA quality standards with correct materials, heat treatments, and finishes, the M-SPEC kit delivers the small hardware and springs needed to bring a stripped AR-15 lower to a fully functional state.

This LPK includes the essential lower-receiver controls and retention hardware, such as the takedown pin, pivot pin, pin detents, and detent springs, along with the additional small parts required to complete a mil-spec AR-15 lower. The kit is finished in black and is made in the USA.

Designed for direct fit with standard AR-15 lower receivers, the M-SPEC LPK is a straightforward drop-in option for builders, gunsmiths, and armorers who want reliable, properly finished small parts without sourcing them individually.