Colt's Manufacturing Field Repair Kit – M4/AR15

This field repair kit provides the essential small parts most likely to break, wear out, or get lost during extended use of M4 and AR-15 pattern rifles. It's designed as a backup parts set for shooters who need to keep their rifle running in the field without access to a gunsmith or parts supplier. The kit covers common replacement needs: extractor components, gas rings, firing pin retaining pin, and other critical small parts that can fail under hard use or high round counts.

All parts are manufactured by Colt's Manufacturing to original specifications. The kit includes multiple gas rings, which wear gradually and should be replaced when compression weakens, plus a complete extractor spring and insert set. Most parts are drop-in replacements requiring only basic tools and familiarity with AR-15 disassembly. The extractor itself requires punching out the pin—straightforward for anyone comfortable with field stripping. Compact enough to store in a range bag or deployment kit.

• Part Type: Field Repair Kit
• Compatible Firearms: M4, AR-15 pattern rifles
• Manufacturer: Colt's Manufacturing
• Installation: Drop-In (basic disassembly knowledge required)
• Includes: Gas rings, extractor spring, extractor insert, firing pin retaining pin, and additional small parts per Colt specification