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Find the Best BCGs for AR-15, AR-9 and AR-10 / LR-308 for your next build. 80+ BCGs from top Brands at best prices & backed by our satisfaction guarantee.
What is a Bolt Carrier Group? The Bolt Carrier Group (BCG) is a critical component of the AR-15 rifle platform. It is responsible for the cycling of the firearm, which includes chambering a round, firing, extracting t...
What is a bolt carrier group? The Bolt Carrier Group (BCG) is a critical component of the AR-15. The BCG is the action of the rifle. It loads a new round into the chamber, fires that round, extracts and ejects the spe...
Shop AR-15 Bolt Carrier Groups at MidwayUSA! We carry the best selection of AR-15BCG's at the best prices!
These are the best-in-class bolt carrier groups for mil-spec, low-mass, slick coatings, exotic materials, and more.
Read our Bolt Carrier Group Guides for tips on buying the best BCG for your rifle and check out all our AR15 parts for sale for more amazing deals on AR barrels, complete upper receivers, handguards, and other firearm...
Shop our lightweight BCGs and carriers to increase AR-15 reliability, and pair one with an adjustable gas block to reduce recoil. We carry the top brands, including our own RTB line of bolt carrier groups.
Elevate your AR-15 rifle's performance with our meticulously crafted Bolt Carrier Groups (BCGs) available at A1Armory.com. Engineered with precision and reliability in mind, our AR-15BCGs ensure seamless functionality...
A bolt carrier group, commonly referred to as a BCG, is the core operating component of an AR-15. It houses the bolt, firing pin, cam pin, and gas key, working together to chamber rounds, fire, extract spent casings, ...
Upgrade your rifle with a high-quality AR15 Bolt Carrier Group from Bear Creek Arsenal, designed for dependable operation, reduced wear, and long-term reliability. Each AR15 BCG is manufactured from durable 9310 steel...