The Colt Lower Receiver Parts Kit brings together genuine Colt factory components to complete or refresh your AR-15 small-pin lower receiver. Designed to work seamlessly with mil-spec .154" pin lowers, this kit supplies the essential small parts needed to install your preferred trigger group and pistol grip while restoring crisp, reliable function to new builds or well-used rifles.

This kit is ideal for shooters assembling a quality AR-15 lower or rebuilding worn internals without mixing parts from multiple sources. It supports general range use, training, and recreational shooting where consistent reliability matters. The included Accu-Wedge helps tighten the fit between upper and lower receivers to promote more consistent accuracy, reflecting Colt’s long-standing reputation for thoughtful engineering and dependable performance.

• Manufacturer: Colt
• Model: Colt Lower Receiver Parts Kit
• Make Model Fit: AR-15 Small-Pin (.154" Diameter) Lower Receivers
• Included Components: Small lower receiver parts and Accu-Wedge (no trigger, hammer, disconnector, or pistol grip)
• Compatibility Notes: Not compatible with .308 platform rifles