Colt Lower Receiver Parts Kit Ar15

The Colt Lower Receiver Parts Kit AR-15 (SKU CTSPK99501) is a purpose-built component assembly designed for shooters who demand reliability and authenticity in their AR platform build. This kit serves as the foundation for lower receiver completion, containing all the critical fire control and operational components required to transform a stripped lower into a fully functional firearm platform. Whether you're a law enforcement armorer, military personnel, or experienced civilian builder, this Colt-manufactured kit delivers the precision engineering and quality control associated with one of America's most trusted firearms manufacturers.

This lower receiver parts kit includes all essential fire control components—trigger assembly, hammer, disconnector, springs, and retention hardware—manufactured to strict tolerances and Colt specifications. The components are engineered for consistent fire control geometry, ensuring reliable single-round ignition and predictable reset characteristics that law enforcement and military users depend on in demanding environments. Each part is finished to Colt's standard, providing corrosion resistance and durability across extended use cycles. The kit's compact design (6 x 1 x 6 inches) makes it easy to transport or store, while the 0.5 lb weight reflects the precision metal construction without unnecessary bulk.

This kit is ideal for armorers completing lower receivers to exact specifications, unit custodians maintaining inventory, or builders who require OEM Colt components for performance-critical builds. Installation requires proper tools and mechanical knowledge—pressing and fitting of trigger pins and detents demands precision to ensure safe operation and correct fire control function. The parts kit is compatible with standard AR-15 lower receivers and integrates seamlessly with mil-spec upper assemblies. For anyone building or maintaining AR platforms where component traceability and manufacturer reliability are non-negotiable, the Colt Lower Receiver Parts Kit AR-15 delivers proven performance backed by decades of military and law enforcement service history.