Bolt Carrier Groups

High quality components and precise manufacturing make San Tan Tactical parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on. San Tan...

Seeing MIL-SPEC as just the starting point, they set out to ensure the best options are available for their demanding customers. Improvements include using 9310 tool steel for the bolt, nitriding the assembly to increase surface hardness, decrease...

The Faxon 5.56 M16 Bolt Carrier Group, Nitride is a high-performance and reliable upgrade for your AR-15 rifle. This bolt carrier group is designed for optimal performance and is made from top-quality materials, ensuring durability and longevity. The...

This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both...

The Rosco Melonite Bolt Carrier Groups are designed to meet the needs of modern carbine shooters. They incorporate input from both consumers and military end users to ensure you get the product you require, not just what they want to sell. All Rosco BCGs...

Bootleg AR10 .308 Complete Bolt Assembly Upgrade your carrier with confidence today. Additionally, by completing your Bootleg, Inc. AR 10 Carrier with the Bootleg, Inc. .308 AR Carrier Completion Kit, is an investment in a product that is designed to...

KAK K-SPEC Low Mass BCG - NP3 Finish C158 Bolt and 4140 Cam Pin - Gold Anodized When your build demands uncompromising performance across all conditions—suppressed or unsuppressed—the K-SPEC Bolt Carrier Group delivers. Designed as a...

Colt Bolt Repair Kit - AR15/M4 Keep your AR15/M4 rifle mission-ready with the Colt’s Manufacturing Bolt Repair Kit—a compact, black-finished set of critical components built for quick field repairs and long-term reliability. Designed by one...

CMMG Firing Pin Retainer Pin - M16/AR15 Upgrade your AR-15 or M16 with confidence using the CMMG Firing Pin Retainer, engineered for uncompromising performance and reliability. Whether you're an avid shooter, a competitive marksman, or building your...

Cryptic Coatings Bolt Carrier Group - 6.5 Grendel Type II/6mm ARC Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG...

Cryptic Coatings Bolt Carrier Group - 9mm PCC Cryptic 9mm bolts are designed for use with GLOCK and COLT style magazines as well as drop in mag well adapters. They feature an extra heavy duty, 4140 heat treated, external extractor specifically designed...

Cryptic Coatings Bolt Carrier Group - 6.5 Creedmoor Coated bolt carrier group (full auto version) for AR10 (6.5 Creedmoor) machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin. BCG includes a heat treated gas key. Gas key is...