Rifle Bolts & Parts
- In StockLuth-AR Extractor O'Ring, 10-Pack, AR-15 BT-08-OR-10Helps Extractor ReliabilityPrecise ManufacturingLong Term ReliabilityDurable Construction The LUTH-AR AR-15 Extractor O'Ring is designed to go over the bolt extractor spring, typically on short ...
$18.10 - In StockFailZero Fail Exo Firing Pin EXO-FIRINGPIN01Nickel Boron treatedExtreme durabilityDry lubricityCorrosion resistant Put the latest and greatest technology into your AR-15 rifle, starting with one of the most important parts: the firing pin. ...
$21.78 - In StockKNS Precision, Inc. AR-15 Firing Pin Retaining Pin, Black PERMAFits AR-15 CarrierNOT for .308Retains Firing Pin Replaces standard cotter pin found in the bolt carrier to retain the firing pin.
$21.90 - In StockFAXON 6.5 Grendel Type 2 .136 9310 Complete Bolt Carrier Group (FF65GBCGCNITRIDE)Type II (.136") bolt9310 Tool Steel BoltFull MIL-SPEC Heat TreatmentShot Peened to MIL-SPECMagnetic Particle Inspection (MPI)Back of Lugs Chamfered for ReliabilitySpring, Insert, & ...
$144.07 - In StockFAXON FX7 .308 Matte DLC Bolt Action Receiver (FX700SA-308-01)Integrated 20-MOA Picatinny railIntegrated recoil lug70-degree bolt lift6-Lug configuration arranged in 2 rings of 3Compatible with Remingtion 700 Short action stocks and chassis systemsCompatible ...
$750.99 - In StockFAXON 5.56 9310 Nitride Bolt Complete (FF556BCNITRIDE)5.56mm caliber9310 tool steel bolt constructionFull MIL-SPEC heat treatmentShot Peened to MIL-SPECMagnetic Particle Inspection (MPI)Back of lugs chamfered for reliabilitySpring, insert, and ...
$56.95 - Out Of 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
$24.99 - Out Of StockKEL-TEC SU-16 Deflector Handle (SU16422)Comes standard on SU-16C modelsDeflects cases forward into a safe directionDoes NOT work with SU22 or PLR22Black Polymer The KEL-TEC SU-16 Deflector Handle (SU16422) comes standard on the SU-16C ...
$23.33 - Out Of StockREMINGTON 700 Short Action Carbon Steel 308 Win Bolt Action Receiver (R27553)Bolt Action ReceiverShort Action.308 Win Bolt Face1-1/16"x16 TPI ThreadCarbon SteelBlued FinishFits: All Short Action Calibers - Except .223 Rem The Remington 700 is still considered by many ...
$599.99 - Out Of 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.
$127.89 - Out Of StockDoublestar Corp. Bolt Carrier Rebuild Kit, Contains 1 Extractor, 1 Extractor Spring With Bumer Pad, 1 Set of 3 Gas Rings, 1 O Ring, 1 Extractor Pin, 1 Firing Pin, 1 Firing Pin Retaining Pin, 1 Gas Key, 2 Gas Key Screws AR789Precise ManufacturingLong Term ReliabilityDurable Construction High quality components and precise manufacturing make ACE parts ideal for maintaining and upgrading firearms. The durability, ...
$47.99 - Out Of StockFAXON FX7 .308 Win 18in Gunner Matte DLC Action Barreled Bolt Action Receiver (FX700SA-308-01-7F1B810N18NGQ)Integrated 20-MOA Picatinny railIntegrated recoil lug70-degree bolt lift6-Lug configuration arranged in 2 rings of 3Compatible with Remingtion 700 Short action stocks and chassis systemsCompatible ...
$1,034.08
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.