Bolt carrier groups (BCG) and bolt carrier parts from the industry’s leading manufacturers. Upgrade to a NiB or phosphate AR-10 or AR-15 bolt carrier today.
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Everything you will need to repair or replace the essential components on your 2A Armament or other Mil Spec AR15 bolt.
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9mm bolt carrier group compatible for use with both GLOCK® and Colt® style 9mm AR-15 magazines without any further modifications.
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Best SellerJust swap this drop in conversion with the bolt carrier group from your 5.56/.223 chambered rifle and you will be ready to shoot .22LR. Ships with one or three 10 round magazines. All Stainless Steel Construction. The magazines are polymer. Works in most 5.56/.223 chambered rifle.
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Best SellerJust swap this drop in conversion with the bolt carrier group from your 5.56/.223 chambered rifle and you will be ready to shoot .22LR. Ships with one or three 25 round magazines. All Stainless Steel Construction. Works in most 5.56/.223 chambered rifles. See Media Tab for review video. Additional 25-Round Magazines Available.
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High-quality components and precise manufacturing make CMMG 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.
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This Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec AR10 upper receivers. All critcal parts are coated with EXO Nickel Boron technology that provides permanents dry lubricity, extreme durability, increase wear and corrosion resistance. Our patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.
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This 9mm Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most 9mm AR platform rifles and pistols. The FailZero Black Nitride 9mm BCG is compatible with both lowers designated for Glock or Colt magazines. All critical parts are coated with Salt Bath Nitride (Black) which provides durability and increases both wear and corrosion resistance.
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TheFailZero Lightweight Bolt Carrier Group is a lightweight mod designed to increase tactical performance. Durable and smooth, this Carrier Group will enhance the feel of your rifle.
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This 9mm AR Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most 9mm AR platform rifles and pistols. The FailZero 9mm BCG is compatible with both lowers designated for Glock or Colt magazines. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both wear and corrosion resistance. Our patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.
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Nemo’s patented bolt carrier and buffer system has never been offered in a builder’s kit until now. The same quality components, high-end coatings, and innovative recoil reduction technology that are used in NEMO’s OMEN and XO model lineup are now available in a kit for your large frame AR. Use this kit whether you are building a rifle from the ground up or looking to reduce recoil in your existing rig. The technology in the bolt carrier group reduces bolt speeds and felt recoil when the recoiling mass bottoms out in the buffer tube. Other products are designed to minutely dampen the force at the moment the recoiling mass bottoms out, whereas NEMO’s design creates a dynamic solution at the beginning of recoil that creates a low “bottom-out” force. This is accomplished by forcing the buffer to bottom out and start its return before the BCG has finished its recoil cycle. The buffer and BCG momentum are opposite, and the result is a noticeable low impact “bottom-out” force. WATCH IT WORK, Click here to see the system in action and how it compares to standard bolt carrier groups.
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Looking for a 6.5 Grendel BCG? The ODIN Works 6.5 Grendel BCG is designed to function smoothly and dependably. The Nitride finish provides a low-friction surface and reduces the need for lubricant. See the "Specs" Tab for more information. Get yours today!