BCG Repair

AR15 BCG Repair Parts, Extractor Kits and Rehab Components

This BCG Repair category covers the small, high-cycle components that keep an AR-15 bolt carrier group running, including extractor springs, o-rings, spring inserts, ejector roll pins, firing pin retaining pins, nitride cam pins, stainless steel gas rings, and gas key screws. Whether you are refreshing a worn bolt or stocking spare wear items, these parts target the components most likely to fatigue over time.

Many items ship in multi-packs, such as ten-packs and the twelve-pack gas rings, which is practical for builders and gunsmiths maintaining multiple rifles. The AR15 Bolt Carrier Group Rehab Kit and the Extractor Assembly Kit group several parts together for a complete refresh in one purchase. For broader maintenance, pair these with an AR15 Range Repair Kit.

Confirm fitment with your platform and caliber before installing, and replace springs and pins showing wear. Round out a build with our Build Kits and Receivers.