KAK Industry Carrier Completion Kit – AR-15 Bolt Carrier Group Components

The KAK Industry Carrier Completion Kit provides the small parts needed to complete a stripped AR-15 bolt carrier or replace worn components in an existing bolt carrier group. This kit includes the cam pin, firing pin, firing pin retaining pin, and gas rings—critical components that control timing, ignition, and gas seal in the AR-15 operating system. Replacing these parts restores reliable cycling and firing pin function in carriers that have been stripped for refinishing or show signs of wear.

Manufactured from mil-spec materials with proper heat treatment, these components meet the dimensional and durability standards required for reliable AR-15 operation. The gas rings are properly tensioned to maintain seal without binding. Installation is straightforward for anyone familiar with AR-15 field stripping—no specialized tools or gunsmithing required. This kit does not include the bolt itself or ejector/extractor components.

• Part Type: Bolt Carrier Group Small Parts Kit
• Compatible Firearms: AR-15, M16, M4 pattern rifles
• Material: Mil-spec steel components
• Finish: Standard phosphate/natural finish
• Installation: Drop-in (basic AR-15 disassembly knowledge required)
• Includes: Cam pin, firing pin, firing pin retaining pin, gas rings (set of 3)