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Table of Contents
- Why do we need an AR-10 BCG?
- The Best Pick
- Top 18 AR 10 Bolt Carrier Group
- #1 ODIN Works AR10 Black Nitride Bolt Carrier Group
- #2 Stag Arms Stag 10 QPQ Bolt Carrier Group
- #3 TRYBE Defense Milspec Complete Bolt Carrier Group
- #4 FailZero 308 Bolt Carrier Group
- #5 ArmaLite AR10 Bolt Carrier Assembly
- #6 New Frontier Armory New Frontier Bolt Carrier
- #7 Guntec Usa Guntec Bolt Carrier Group
- #8 2A Armament AR10 Full Mass Bolt Carrier Group
- #9 Dark Storm Industries Bolt Carrier Groups
- #10 JP Enterprises VMOS AR Bolt Carrier
- #11 J P ENTERPRISES BOLT CARRIERS BLACK
- #12 J P ENTERPRISES AR LOW MASS BOLT CARRIER GROUP
- #13 CMC TRIGGERS ENHANCED BOLT CARRIER GROUP
- #14 CMMG – 308 AR BOLT CARRIER GROUP
- #15 BROWNELLS – 308 AR TITANIUM BOLT CARRIER GROUP DLC
- #16 AERO PRECISION – AR 308 BOLT CARRIER GROUP
- #17 WILSON COMBAT BOLT CARRIER ASSEMBLY
- #18 ODIN WORKS INC. – AR 308 BOLT CARRIER GROUP
- How to clean and lubricate AR-10 BCG?
AR-10 BCG is the part of the rifle that performs the cycling action and helps load a new round into the chamber. The BCG also houses the firing pin and is responsible for striking the primer to ignite the propellant in a cartridge.The Bolt Carrier Group is a core of the firearm, it shouldn’t be underestimated.
Why do we need an AR-10 BCG?
The AR-10 BCG is necessary because it is specifically designed to work with the AR-10 platform. It is made of higher quality steel than other BCGs and is precision machined to ensure that it fits properly and functions flawlessly.The Bolt Carrier Group allows you to improve the durability, precision, and reliability of your AR build, eliminating cycling issues.
The Best Pick
J P ENTERPRISES AR LOW MASS BOLT CARRIER GROUP
This reduced-weight bolt/ carrier assembly helps tame felt recoil on a DPMS, JP, or Remington AR-style .308 rifle (LR-308 pattern only). Designed to bear high-heat, high-impact use.
Top 18 AR 10 Bolt Carrier Group
#1 ODIN Works AR10 Black Nitride Bolt Carrier Group
The AR10 bolt carrier group is constructed for multi-caliber: .308, 6.5 CM, 6 CM, and any other caliber with that size of the case head. The High-Pressure Bolt is manufactured from case hardened 9310 Steel Carrier is from 8620 Steel with Black nitride finish (QPQ), properly staked gas key is from 4130, hardened 4340 cam pin, the extractor is from 4340 steel.
#2 Stag Arms Stag 10 QPQ Bolt Carrier Group
The QPQ (Quench polish quench) Nitride BCG functions with any rifle, upper half, or barrel, bored for .308/6.5 Creedmoor. The AR-10 Bolt Carrier Group is constructed from 8620 steel with a Black Nitride finish and right-hand ejection. The BCG consists of a Bolt carrier with a shrouded firing pin, cam pin, bolt assembly, and firing pin retaining pin.
#3 TRYBE Defense Milspec Complete Bolt Carrier Group
The fully-assembled DPMS-compatible BCG comes with the AISI Steel Nitride-Treated Bolt Carrier (8620) and Bolt Shot Peened (9310), firing pin, cam pin, enhanced Ejector, Firing Pin Retaining Pin, Gas Key Properly Staked, and Extractor Pin. The BCG is paired with .308-chambered AR-10s and should be cleaned and oiled regularly.
#4 FailZero 308 Bolt Carrier Group
The Assembled BCG promptly and easily fits into the weapon, DPMS Pattern, and 6.5 Creedmoor compatible. All essential BCG components are covered with EXO Nickel-boron to ensure permanent dry lubricity and enhance durability. The Bolt is 9310 Steel, the Carrier is 8620 Steel.
#5 ArmaLite AR10 Bolt Carrier Assembly
The Complete bolt assembly is manufactured from Steel Bolt and Steel (8620) Carrier with Black Chrome finish. The AR-10 BCG features 55-inch lbs torque on the gas key screws.
#6 New Frontier Armory New Frontier Bolt Carrier
The AR 10 Bolt Carrier is constructed for flawless operation with rifles, using .308 and 7.62×51 calibers. The BCG is machined from Steel, and covered with Black Matte.
#7 Guntec Usa Guntec Bolt Carrier Group
The AR10 BCG consists of 9310 Hardened Steel Bolt, 8620 Steel Carrier and gas key, 17-4 Stainless Steel Firing Pin (Heat treated to H900 Condition), and S7 tool steel hardened extractor.
#8 2A Armament AR10 Full Mass Bolt Carrier Group
The AR10 Full Mass Carrier (FMC) is engineered for LR-.308 DPMS-style rifles. The 2A Armament BCG comes with Carrier from heat-treated 8620 steel; Bolt from MP heat-treated 9310 steel; machined, heat-treated Extractor, and Carrier key. These BCGs are compatible with full-auto firearm systems, but they don’t support the use of forward assist.
#9 Dark Storm Industries Bolt Carrier Groups
The DS-10 Bolt Carrier Groups are paired with most SR, LR, DPMS, CMMG, and DSI .308 in AR-10 Rifles. The Phosphate Chrome BCG includes 9310 Heat Treated Bolt, S7 Tool Steel Hardened Extractor, 17-4 Heated Treated Stainless-Steel Firing Pin, 8620 Carrier, and Gas Key.
#10 JP Enterprises VMOS AR Bolt Carrier
Some degree of mass regulation is needed for optimal performance with suppressed rifles and exotic caliber chamberings without adjustable gas blocks. The Variable Mass Operating System (VMOS) carrier delivers dependability through additional reciprocating mass but provides more custom tunability. This BCG fits only the DPMS family of AR-10s, and won’t cycle with a standard buffer retainer plunger installed.
#11 J P ENTERPRISES BOLT CARRIERS BLACK
#12 J P ENTERPRISES AR LOW MASS BOLT CARRIER GROUP
This reduced-weight bolt/carrier assembly helps tame felt recoil on a DPMS, JP, or Remington AR-style .308 rifle (LR-308 pattern only). The weight-reducing cuts on this carrier and the original JPBC-3 AR-15 bolt carrier are the same. The BCG includes a complete JP Enhanced Bolt (available separately as well), installed and staked carrier key; it’s constructed for high-heat, high-impact use. Available with QPQ or polished stainless finish.
#13 CMC TRIGGERS ENHANCED BOLT CARRIER GROUP
The AR 308 Enhanced BCG allows improving performance in the short-action ARs with 7.62 NATO cartridges and related rounds. The carrier is designed with relocated bearing surfaces, delivering smoother, more reliable operation. The bolt assembly from case-hardened 8620 steel features Mil-spec dimensions and external surfaces that are CNC-ground after heat-treatment to provide precise tolerances.
#14 CMMG – 308 AR BOLT CARRIER GROUP
The complete bolt/carrier group is designed for AR-style .308 rifles. The carrier is without forward assist serrations and features a sturdy phosphate finish and chrome-lined interior. The BCG includes an extractor, gas key (torqued to spec and properly staked), firing pin, cam pin, and firing pin retaining pin.
#15 BROWNELLS – 308 AR TITANIUM BOLT CARRIER GROUP DLC
A Big-Bore AR BCG for a DPMS/SR25 pattern saves weight off a rifle design that can get hefty quickly. This Bolt Carrier Group is crafted using 6A1-4V titanium for the carrier, and 9310 tool steel for the bolt.
#16 AERO PRECISION – AR 308 BOLT CARRIER GROUP
The BCG is designed for big-bore rifle build (.308, 7.62×51, 6.5 Creedmoor, .338). The Billet carrier with Forward Assist serrations is manufactured from steel (8620) and case hardened. The extractor (4340 steel) comes with double o-rings and springs. The BCG features a laser engraved Aero Precision “A” logo.
#17 WILSON COMBAT BOLT CARRIER ASSEMBLY
The .308 AR Bolt Carrier Assembly is engineered for DPMS-pattern guns, as these are the same BCGs used by Wilson Combat in its finished rifles. The BCG functions on guns chambered in .308 Win, 6.5 Creedmoor, 7.62 NATO, .260 Rem. or any other .308-based cartridge. The bolt is machined from Carpenter 158 steel, which is complete with an extractor and hardened ejector, which is from S7 tool steel, and a bolt carrier – from hardened 8620 steel.
#18 ODIN WORKS INC. – AR 308 BOLT CARRIER GROUP
This BCG, coming with a firing pin and everything necessary, will work in DPMS AR-10 in .243 caliber and in an Aero M5 AR-10 Upper in 6.5 CM, in all AR 308 rifles, including the DPMS pattern.
How to clean and lubricate AR-10 BCG?
Cleaning and lubricating your AR-10 BCG is a crucial part of maintaining your rifle and keeping it in good working order. Here are some tips on how to do it properly:
- First, you will need to disassemble your AR-10 BCG by removing the charging handle and bolt carrier group.
- Next, you will need to clean the inside of the bolt carrier group with a brush and solvents. Besure to remove all carbon build up and residue.
- Once the inside of the bolt carrier group is clean, you will need to lubricate it with a quality gun oil or lubricant. Apply a thin layer of lubricant to all moving parts, including the bolt, carrier, and charging handle.
- Finally, reassemble your AR-10 BCG and test it to make sure everything is working properly.
By following these simple steps, you can keep your AR-10 BCG in good condition and extend its lifespan. Regular cleaning and lubrication will also ensure that your rifle is always ready to fire when you need it.
Conclusion
AR-10 BCGs are a critical component of the AR-10 rifle. Bolt Carrier Groups ensure due cycling during every trigger pull of the firearm. The BRG can be included in upper receivers, or come separately with or without a charging handle. Before buying the BCG check the completeness properly.
They also must be properly cleaned and lubricated to ensure the proper functionality of the weapon. In this article, we have provided reviews of some of the best AR-10 BCGs on the market, as well as a FAQ section and a How-To guide for cleaning and lubricating your AR-10 BCG. We hope that you find this information helpful.
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