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The Bolt Carrier Group is the heart of your AR15 or AR10, so shop from our wide selection of options in finishes, colors, and calibers. We carry Aero Precision bolt carrier groups, Geissele bolt carrier groups, and other high-quality AR15 BCGs that will go the distance on your modern sporting rifle. Also, browse our best bolt carrier groups based on real reviews from verified customers. Our AR15 BCG collection is available with Phosphate, NP3, Melonite, and Nitride coatings, as well as eye-catching Nickel Boron. All these finishes provide corrosion resistance and reliable functioning to ensure that your rifle fires when you need it most. For the most reliability, check for models that have been shot-peened, high-pressure tested (HPI), and/or Magnetic Particle Inspected (MPI) for quality assurance.image

What Does the Bolt Carrier Group Do?

An AR15 bolt carrier group provides some of the most important functions inside the rifle. These include firing the round in the chamber, ejecting the spent cartridge, resetting the hammer, and chambering the next round. All these functions are crucial, so getting a reliable Bolt Carrier Group ensures your rifle works at its best when you need it most.

Buy AR Bolt Carrier Groups Online at OpticsPlanet

Find the perfect Ar-15 or AR-10 bolt carrier group at OpticsPlanet.com to ensure smooth cycling, reliable feeding, and superior performance. 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 barrels, complete upper receivers, and other firearm essentials. Gear up today to get Free Shipping on most orders over $49.

521 Products in Bolt Carrier Groups

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