Colt's Manufacturing High Wear Parts Kit – M4/AR-15

This high wear parts kit from Colt's Manufacturing provides critical replacement components for maintaining reliable function in M4 and AR-15 pattern rifles. The kit includes the small parts most prone to wear from extended firing schedules—bolt catch spring and plunger, trigger and hammer pins, ejector and spring, extractor and spring, firing pin retaining pin, and gas rings. These are the parts armories and serious shooters keep on hand for preventive maintenance or when troubleshooting extraction, ejection, or trigger malfunctions.

All parts are manufactured to Colt's military specifications. Installation requires basic AR-15 knowledge and standard gunsmithing tools. The bolt catch components and pins are drop-in replacements. Gas rings, extractor, and ejector require bolt disassembly. If you're unfamiliar with AR-15 field stripping beyond basic cleaning, consult a qualified gunsmith.

• Part Type: High Wear Maintenance Kit
• Compatible Firearms: M4, AR-15 pattern rifles
• Manufacturer: Colt's Manufacturing
• Includes: Bolt catch spring and plunger, trigger and hammer pins, ejector and spring, extractor and spring, firing pin retaining pin, gas rings
• Installation: Requires AR-15 disassembly knowledge; professional installation recommended if unfamiliar with bolt maintenance