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1. palmettostatearmory.com › bolt-carrier-groupsAR-15 Bolt Carrier Groups | Palmetto State Armory

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   Find a variety of bolt carrier groups for your AR-15 rifle or pistol from brands like Toolcraft, PSA Custom, and more. Compare prices, ratings, and features of different BCGs and BCG parts at Palmetto State Armory.

2. www.pewpewtactical.com › best-ar-15-bcg-boltBest AR-15 Bolt Carrier Groups (BCG) of 2024 - Pew Pew Tactical

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   • The Quick List
   • Best AR-15 Bolt Carrier Groups
   • Best Low-Mass Or Lightweight Bolt Carrier Groups
   • Best Specialty Bcgs
   • Full Auto vs Semi-Auto Bolt Carrier Groups
   • Mil-Spec Bolt Carrier Groups
   • HPT and MPI Tested
   • Different BCG Coatings
   • Final Thoughts
   • GeneratedCaptionsTabForHeroSec

   Gold Standard Mil-Spec BCGBCM Mil-Spec BCGJump to Details

   Best Nickel Boron BCGWMD Nickel Boron BCGJump to Details

   Most AffordablePSA Mil-Spec Phosphate BCGJump to Details

   Most Affordable Low-Mass BCGBrownells Lightweight BCGJump to Details

   See full list on pewpewtactical.com

   1. Bravo Company Manufacturing (BCM) M16 BCG

   Let’s just start with our editor’s pick for a branded mil-spec BCG. If you ask most people online what’s their go-to BCG…the vast majority is going to beBCM’s M16 BCG. Nothing much to say except it’s mil-spec everything and has a greatreputation. What’s your take on the BCM? Give it a rating below.

   2. Brownells Nitride M16 BCG

   Looking for something a little more budget? Brownells Nitride M16 BCG gives you the added benefit of the Nitride finish, which makes it slicker and easier to clean. It’s MPI tested and otherwise mil-spec…except that the bolt is made of 9310 steel instead of Carpenter 158. The chances of that mattering for an average shooter that puts even a few thousand rounds downrange a year is super slim. In the back of your mind, you’ll know it’s not mil-spec…but it’s about half the price of the BCM.

   3. Rainier Arms Match Grade Nitride BCG

   Want something in the middle…that’s mil-spec AND Nitride coated? Check out Rainier Arms’ Nitride BCG, which meets or exceeds mil-spec. Plus has a different/more aggressive cut on the carrier around its logo…if that matters to you. And priced at a nice price point between the BCM and Brownells.

   See full list on pewpewtactical.com

   Low-mass or lightweight bolt carrier groups are relatively new on the market. We also have a whole guide just for choosing a lightweight bolt carrier group, so be sure to check that out if you want to know more. A low-mass BCG serves two purposes. If you are following the current fad of super lightweight AR-15s, you want to trim weight basically ev...

   See full list on pewpewtactical.com

   12. KAK K-Spec

   This BCG solved my over-gassing problemson my MK18 once I had my suppressor installed. I didn’t want to take my gas system apart to add an adjustable gas block…so I got the K-Spec which has some great features. First up…some aggressive “sandcutting” rails that help divert debris into less critical areas of your AR. And probably most important to me for my purpose…the gas diversion holes that go into the magazine. Now hold up…did I say magazine? Yup! It sounds weird but chances are your mag ge...

   13. Bootleg Adjustable Carrier

   Here’s a BCG that has a trick up its sleeve… Bootleg’s adjustable carrier gives you this capability in the BCG itself with a couple of clicks on the side. So far, I can definitely feel the recoil difference between the different settings. And although there are only 4 settings, so you won’t get down to the perfect setting for your rifle and loads…it’s a great system if you don’t want the hassle of swapping out a gas block.

   14. Sharps Xtreme Performance BCG

   Sharps Rifle Company has a storied history strongly tied to the Old West. It’s pretty cool to see they are still around innovating products like their Xtreme Performance Bolt Carrier Group. The XPB has a patented Relia-Bolt and is machined out of S7 tool steel. During its creation, each one is thermal-cycled before being treated with a diamond-like coating. With a reputation for absorbing punishing treatment, I put this one to the test. With nothing more than an initial lube, I ran this bolt...

   See full list on pewpewtactical.com

   First off, “full-auto” BCGs are legal and don’t magically make your AR-15 automatic firing. The slightly longer and heavier bolt carrier group has an additional lug at the rear of the bolt carrier group. On a full-auto AR-15 or M16, this rear lug pushes the sear release downwards, which allows full auto (or burst) fire. In a semi-automatic rifle, t...

   See full list on pewpewtactical.com

   Mil-Spec is a bit of a buzzword in the AR community. It generally means the rifle is built to pass military specifications. Mil-spec doesn’t mean the greatest ever or worst; it’s just in spec to a military contract. Here are some of the important bits: 1. High Pressure Tested (HPT) 2. Magnetic Particle Inspected (MPI) 3. Heat treated and shot peene...

   See full list on pewpewtactical.com

   See that “high pressure tested” and “magnetic particle inspected” above? That means each bolt is individually tested at a proof load. Usually, it’s printed onto the bolt (either as MP or MPI). But not all the time. If it doesn’t say in the description…it probably is only batch tested. And you never know if a batch is 10 or 1000 BCGs. Again, if it’s...

   See full list on pewpewtactical.com

   Mil-spec means phosphate coated and is matte and a little bumpy. Which does its job but does require more cleaning than newer coatings. New coatings come and go…and they all say they are the latest and greatest. Here’s my opinion… 1. Nitride is black and shiny. And is easier to clean. 2. While Nickel Boron (NiB) is silver and shiny. And easier to c...

   See full list on pewpewtactical.com

   That does it for BCGs. There are lots to choose from, but the important part is identifying your use case so you can select the right BCG for the job. Hopefully, our list was able to help you get pointed in the right direction! What kind of BCG do you run? There are so many BCGs out there, so let us know what we missed. Looking for more AR parts? C...

   See full list on pewpewtactical.com

   Learn about different types, features, and prices of BCGs for your AR-15 rifle build. Compare mil-spec, low-mass, nickel boron, titanium, gas-reducing, and adjustable BCGs from various brands.

   See full list on pewpewtactical.com

   • 5/5 (1.8K)

   • Author: Eric Hung

3. www.primaryarms.com › ar-15 › bolt-carrier-groupsAR 15 Bolt Carrier Groups For Sale | Primary Arms

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   The Bolt Carrier Group (BCG) is the heart of your AR 15. Buy an AR 15, M16, or low mass complete BCG or build one from a variety of parts available from the world’s top manufacturers. Choose from specialized coatings such as Nickel Boron, Nitride, Melonite or Phosphate.

4. www.opticsplanet.com › bolt-carrier-groupBolt Carrier Groups for Sale Up to 64% Off - OpticsPlanet

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   Shop from a wide selection of AR-15 and AR-10 bolt carrier groups from top brands like TRYBE Defense, Aero Precision, Cryptic, and more. Find BCGs with different finishes, coatings, calibers, and quality assurance features at great prices and free shipping.

5. www.brownells.com › bolt-carrier-groupsBolt Carrier Groups For Sale Up To 28% Off | Brownells

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   Find a variety of bolt carrier groups for AR-15, M16, and Glock rifles at Brownells. Compare prices, ratings, and features of different brands and models of bolt carrier groups.

6. Videos

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     AR-15 Bolt Carrier Group (BCG): How To Disassemble & Reassemble Close-Up Video of Every Step

     Jan 19, 2022

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     HOW-TO CHOOSE // The Best Bolt Carrier Group for Your AR-15

     Sep 13, 2018

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     🔥 Best Bolt Carrier Groups For AR-15 (Buyer’s Guide) | Gunmann

     Aug 8, 2020

     32K Views

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7. www.wingtactical.com › bolts-carriersAR-15 Bolt Carrier Groups and More | Wing Tactical

   www.wingtactical.com › bolts-carriers

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   Find the perfect AR-15 bolt carrier group for your firearm from a wide range of brands and models. Compare prices, features, and ratings of different BCGs and get fast shipping and satisfaction guarantee.

8. gundigest.com › rifles › ar-15What Makes The Best Bolt Carrier Group (BCG)? - Gun Digest

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   Apr 25, 2024 · The BCG is a mil-spec bolt carrier group with a Carpenter 158 bolt, 8620 carrier, a staked carrier key with Grade 8 fasteners and a chrome-lined bolt channel. HPT, MPI and shot peening are done at the factory. The best part is they can be easily found for $100 or less online.