The BCM Bolt Upgrade/Rebuild Kit (brand part number BCM-SOPMOD BOLT KIT) is a full bolt refresh kit built for AR-15 bolt carrier groups. Bravo Company Mfg builds the extractor to USGI specifications and shot-peens it for durability, then pairs it with BCM’s own chrome silicon extractor spring, which is heat-treated, stress-relieved, and shot-peened for a longer service life than a stock spring. The kit rounds out with three USGI gas rings, a Mil-Spec Crane Industries O-ring, and a black extractor insert, giving you everything needed to bring a tired bolt back to full reliability in one order.

Key Specifications

• Includes an extractor made to USGI specifications, shot-peened for durability.
• Includes a matching extractor pin.
• Includes a BCM chrome silicon extractor spring, heat-treated, stress-relieved, and shot-peened.
• Includes 3 USGI gas rings.
• Includes a Mil-Spec Crane Industries O-ring.
• Includes a Black extractor insert.
• Built from steel components.

Frequently Asked Questions

What’s included in this kit? A USGI-spec extractor, extractor pin, BCM chrome silicon extractor spring, 3 USGI gas rings, a Mil-Spec O-ring, and a black extractor insert.

Is the extractor spring upgraded over stock? Yes, BCM’s chrome silicon spring is heat-treated, stress-relieved, and shot-peened for longer service life.

What is this kit used for? Rebuilding or upgrading a tired AR-15 bolt back to full reliability.

Buy the BCM Bolt Upgrade/Rebuild Kit for AR-15

Bring a worn bolt back to full reliability in one order instead of hunting down parts individually. Order it from our Bravo Company Mfg / BCM lineup, part of our gun parts kits selection, at our Lubbock, Texas gun shop for fast, direct shipping.