Armaspec Superlight Gun Builders Kit AR-15 Lower Parts Kit .223/5.56 Black

The Armaspec Superlight Gun Builders Kit is a complete AR-15 lower parts kit designed for assembling a .223/5.56 build from the ground up. This black kit includes all the small internal components needed to finish a stripped AR-15 lower receiver (less trigger group and pistol grip), making it an ideal foundation for a custom rifle build.

At the heart of the kit are the signature Enhanced Superlight takedown and pivot pins, precision-machined to reduce overall weight while maintaining the strength and reliability expected in a duty-grade platform. A stainless steel takedown detent and associated springs round out the pin assembly.

The kit also includes an Armaspec SFT 45/90 safety selector for safe, positive engagement, plus the complete bolt catch assembly, magazine catch, magazine release button, and buffer retainer. Additional small parts such as the trigger and hammer springs, disconnector spring, and pivot/takedown detent springs are all included to complete the lower.

This lower parts kit is compatible with most mil-spec AR-15 lower receivers and is proudly made in the USA, backed by Armaspec's lifetime warranty. Whether you're building a new rifle from a stripped lower or upgrading an existing build with lighter components, the Superlight Gun Builders Kit delivers a comprehensive, high-quality solution.