Rifle Bolts & Parts
- In StockCMMG 22ARC Auto Sear Trip Kit (22BA64D)Fits an AR15
$54.28★★★★★1 review(s) - In StockTROY AR15 Ambidextrous Bolt Release, Black (SBOL-AMB-00BT-00)One handed operationIdeal for firearm cleaning or reloading after a malfunctionEliminates hand changeoversImproves control over your rifleMade from hardened aircraft aluminumBlack Finish
$39.81 - In StockLBE UNLIMITED AR15 Firing Pin (ARFPN)AR15 Firing PinMade in the USA
$17.32★★★★★1 review(s) - In StockLBE UNLIMITED Complete AR15 Bolt Carrier Group (AR15BLT)Phosphated 8620 Steel Carrier - AR15 StyleCarpenter 158 Bolt (Extractor and Bolt Gas Rings Included)Chrome Lined Carrier InteriorChrome Lined Gas KeyStaked Gas Key ScrewsMade in USA
$131.43 - In StockLBE UNLIMITED M16 Bolt Carrier Group (M16BLT)Phosphated 8620 Steel Carrier - M16 StyleCarpenter 158 Bolt (Extractor and Bolt Gas Rings Included)Chrome Lined Carrier InteriorChrome Lined Gas KeyStaked Gas Key ScrewsMade in USA
$128.67 - In StockPATRIOT ORDNANCE FACTORY .308/AR-10 Roller Cam Pin (306)Reduces friction and drag of the bolt carrierFits POF P308 (7.62 model) Bolt AssembliesNP3 coatedMil-Spec hard chrome plated
$31.34 - In StockPOF AR15 Roller Cam Pin (307)Reduces friction and drag of the bolt carrierFits any gas piston 5.56-type carrierNP3 coatedMil-Spec hard chrome plated
$32.99 - In StockPOF AR15 Bolt (328)Chrome-plated bolt assemblyHeat treated to MIL-SPECReady for your AR-15/M16 carrier
$71.34 - In StockPOF AR15 Roller Cam Pin Kit with Modified Gas Key (393)Reduces friction and drag of the bolt carrierModified Gas KeyFor direct impingement-type rifles
$53.52 - In StockLANTAC SmoothCam 223/556 Domed Cam Pin (01-UP-556-CP)Domed head cam pinCopper/brass finishStainless steelCompatible with .223/.556 BCGsMade in the U.S.A. The Lantac CP-R360 Cam Pin features a unique, domed style head designed to curve away from the ...
$34.44 - In StockLANTAC SmoothCam 308/7.62 Heavy Domed Cam Pin (01-UP-762-CPH)Domed head cam pinCopper/brass finishStainless steelCompatible with .308 / 7.62 BCGsMade in the U.S.A. The Lantac CP-R360-H Cam Pin features a unique, domed style head designed to curve away from ...
$35.12 - In StockLBE UNLIMITED Bolt Carrier Group Cam Pin For AR15/M16 (ARCPN)For AR15/M16Black Finish This cam pin is great if you need replacement parts or having spares for your AR-15 bolt carrier group.
$15.51 - In StockPHASE 5 WEAPON SYSTEMS V1 Extended Bolt Release (EBRV1)Works with most AR-15 receivers including the DPMS LoPro and other billet uppersTwo-piece heat-treated steel constructionAmbidextrous designOverall Length: 2.25"Assembled Weight: 0.63 oz. ...
$40.45★★★★★3 review(s) - In StockPHASE 5 WEAPON SYSTEMS Extended Bolt Release v2-308 DPMS (EBRV2308)Contents: (1) EBRv2/308 LeverNot compatible with the Armalite AR-10, DPMS GII, or Sig 716 The Phase 5 (EBRv2/308) gives the operator the ability to reload quicker, clear jams in a more efficient ...
$53.99 - In StockPHASE 5 WEAPON SYSTEMS Extended Bolt Release v3 (EBRv3)Heat treated, high strength alloy steel, same as a mil spec bolt catchSecure patented monolithic design, direct replacement component, no screws to come looseLow profile bolt catch, fits many ...
$50.30 - In StockAngstadt Arms AR-15 Bolt Carrier Group, 9MM, Black Finish, Compatible For Use with Both Glock and Colt Style Dedicated 9mm AR-15 Lower Receivers AA09BCGNITFor Use with a Standard AR-15 HammerQPQ Black Nitride FinishMachined from 8620 Alloy Steel This 9mm bolt carrier group is compatible with both GLOCK and Colt style 9mm AR-15 magazines without any ...
$145.89 - In StockAngstadt Arms Bolt Carrier Group, For 45 ACP, AR Style, Black Finish AA45BCGNITFor Use with a Standard AR-15 HammerQPQ Black Nitride FinishMachined from 8620 Alloy Steel This 45 ACP bolt carrier group is compatible with GLOCK 45 ACP AR-15 (AR-45) builds. It features ...
$150.85 - In StockAngstadt Arms Bolt Carrier Group, Black, .223/556 AA56BCGNITMachined from 8620 alloy steel5.56 Bolt is machined from Carpenter 158 tool steelHigh pressure tested The heart of a reliable AR-15 build is a quality 5.56 bolt carrier group assembly. These are ...
$114.05 - In StockBootleg 5.56 Phosphate Complete Bolt Assembly Cam Pin, Firing Pin and Retaining Pin, Phosphate Coated, Uses all Standard Mil Spec Components BP-ABC-PFits with Bootleg adjustable gas carrierContains 5.56 phosphate complete bolt, cam pin, firing pin, and firing pin retaining pin Whether you're looking to complete your Bootleg, Inc. AR 15 ...
$71.11 - In StockBootleg 5.56 Lightweight Bolt Carrier Group, Machined from 4140, Nitride Coating, Mil Spec Configuration, Staked Mil Spec Gas Key BP-C15-BCGNitride CoatingMachined from 4140Full Auto Rated Machined from 4140, Nitride Coating, MIL-SPEC configuration, Staked MIL-SPEC Gas Key, Full Auto Rated.
$115.28
Bolt Carrier Groups, often abbreviated as BCGs, are truly the heart and soul of semi-automatic rifles, including the much-admired AR-15. They take on the crucial tasks of loading, firing, and expelling cartridges, ensuring smooth operation. Each BCG is composed of several key components: the bolt, carrier, firing pin, cam pin, and retaining pin. At GRITR Sports, you'll be sure to find the best BCG as well as BCG parts.
AR-15 BCGs
At GRITR Sports, we're well aware of the significance of consistent and dependable performance in your AR-15. That's why our inventory includes a variety of top-notch AR-15 bolt carrier groups, brought to you by industry frontrunners like Aero Precision, CMMG, and more. Aero Precision BCGs are distinguished by their exceptional engineering and steadfast dependability - they assure smooth functioning and long-lasting service. CMMG, on the other hand, is celebrated for its pioneering designs that yield unmatched performance and robustness. Regardless of your requirements or budget, we have the ideal AR-15 BCG that will enhance your AR-15 and elevate your shooting experience. Our offerings encompass everything from standard 223/5.56 BCGs to the more unique 9mm and 6.5mm Grendel.
FAQ
What does a BCG do in an AR-15?
In an AR-15, the BCG serves a critical function in the operation of the firearm. It moves within the upper receiver, loading a new cartridge into the chamber, firing the cartridge, extracting the spent casing, and ejecting it out of the firearm.
What is the difference between a semi-auto and a full-auto BCG?
The main difference lies in their design. A full-auto BCG has more mass towards the rear of the carrier, which allows it to interact with an auto sear in a fully automatic rifle. Semi-auto BCGs lack this extra mass. However, both semi-auto and full-auto BCGs can be used legally in semi-automatic rifles.
What's the best AR-15 BCG?
The best AR-15 BCGs include Aero Precision Nickel Boron BCG, Colt Mil-Spec BCG, Bravo Company BCM BCG, and Palmetto State Armory Mil-Spec Phosphate BCG.