Your Browser is OutdatedBolt Carrier Groups | AR-15 Bolt Carrier Groups from TRYBE Defense, Cryptic, JP Enterprises, & Other Top Brands — 492 products / 903 models — Page 1
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. Popular brands like TRYBE Defense, Cryptic, JP Enterprises, and others offer high-quality AR15 bolt carrier groups that will go the distance on your modern sporting rifle. You can also browse models that have been rated as best by our informed 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. For background information, browse our informative collection of articles about AR15 parts, including a section about the assembly of the bolt carrier group. Call on our AR product experts via email, chat, or phone for help deciding what to buy. Buy from OpticsPlanet.com for great service and great gear at great prices. Plus, we offer Free Shipping on most orders over $49.
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 of these functions are crucial, so getting a reliable Bolt Carrier Group ensures your rifle works at its best when you need it most.
How Many Rounds Does a Bolt Carrier Group Last?
The exact amount of rounds depends on the type of BCG you use, the finish it features, and the rounds that you fire. Most AR15 Bolt Carrier Groups can last for well over 10,000 rounds, and you only need to replace them when you notice visible damage to the component. However, if your rifle is a duty rifle, then it is best to replace the Bolt Carrier Group before damage occurs, as this ensures proper function when you're in the field. In this case, you should replace it every 10,000 rounds and inspect it regularly for signs that it may need to be replaced sooner.
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