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We all know that the BCG or bolt carrier group is a critical piece of your rifle. Without it, your rifle can’t function. So, what’s the best one to buy? In this blog post, we’ll take a look at some of the top-rated AR15 BCGs on the market and see what makes them stand out from the competition. Whether you’re a new shooter starting to build your own AR or an experienced gun enthusiast, you’ll want to check out this information, so just keep reading!
Table of Contents
- Top 24 AR15 BCG
- #1 2A Armament AR15 Regulated Bolt Carrier Group
- #2 Aero Precision Grendel Bolt Carrier Group
- #3 Angstadt Arms AR-15 9MM Bolt Carrier Group
- #4 FosTech Outdoors AR-15 Complete Lite Bolt Carrier Group
- #5 Stern Defense SD BU45 ACP Bolt Carrier
- #6 RISE Armament AR-15 Bolt Carrier Group
- #7 Radian Weapons Enhanced Black Bolt Carrier Group
- #8 Aero Precision AR15 5.56 Bolt Carrier Group
- #9 Aero Precision 5.56 AR15 Bolt Carrier Group
- #10 Stern Defense SD BU9 9mm Bolt Carrier
- #11 TRYBE Defense Milspec Complete Bolt Carrier Group
- #12 Failzero Fail Zero Bolt Carrier Group Bushmaster
- #13 Walker Defense Research Titanium Bolt Carrier Group
- #14 Angstadt Arms Angstadt Bolt Carrier Group
- #15 Battle Arms Development Titanium Bolt Carrier Group
- #16 Phase 5 Tactical Complete Bolt Carrier Group
- #17 SONS OF LIBERTY GUN WORKS BOLT CARRIER GROUP
- #18 2A ARMAMENT BOLT CARRIER GROUP LIGHTWEIGHT ADJUSTABLE
- #19 ODIN WORKS INC. – AR-15 BOLT CARRIER GROUP
- #20 FORWARD CONTROLS DESIGN LLC BOLT CARRIER GROUP
- #21 WILSON COMBAT – AR-15 BOLT CARRIER ASSEMBLY
- #22 BROWNELLS – AR15 BOLT CARRIER GROUP
- #23 FAXON FIREARMS LIGHTWEIGHT BOLT CARRIER COMPLETE
- #24 J P ENTERPRISES FULL MASS BOLT CARRIER ASSEMBLY
- FAQ
- Conclusion
Top 24 AR15 BCG
#1 2A Armament AR15 Regulated Bolt Carrier Group
If you’re searching for a top-quality, lightweight solution for your AR-15’s gas system, then you need the 2A Armament AR15 Regulated Bolt Carrier Group. This drop-in carrier has a gas regulating gate built right into the carrier itself, so you can adjust it from fully open to fully closed. There’s no need for an adjustable gas block with this carrier group – it’s all taken care of. The carrier is made from high-quality steel and QPQ Nitride for extreme durability and smooth operation. It’s also heat treated for even more strength and reliability.
#2 Aero Precision Grendel Bolt Carrier Group
If you’re in the market for a quality bolt carrier group (BCG) for your AR platform rifle, consider the Aero Precision 6.5 Grendel Bolt Carrier Group in Black Nitride. These BCGs are made from steel and feature an M16-cut design, making them compatible with a wide range of AR setups. They’re also treated with a black nitride finish, which means they won’t require as much cleaning or lubrication as untreated bolts. Whether you’re building a new AR or just want to upgrade your existing one, the Aero Precision 6.5 Grendel Bolt Carrier Group is a great option to consider.
#3 Angstadt Arms AR-15 9MM Bolt Carrier Group
The Angstadt Arms AR-15 9MM Bolt Carrier Group is a reliable choice for your AR-15 build. This black nitride-finished carrier group is compatible for use with 9mm AR-15 lower receivers and features a removable weight for use with the Law Tactical folding stock adapter. The durable alloy steel construction and steel bolt ensure long-lasting performance, while the small parts are standard for the AR9 platform and easy to service.
#4 FosTech Outdoors AR-15 Complete Lite Bolt Carrier Group
FosTech Outdoors understands that when it comes to your AR-15, you want only the best parts and accessories. That’s why they offer this top-quality Lite Bolt Carrier Group. It’s designed to function perfectly with any standard full-auto AR-15 rifle and is constructed out of tough and durable nickel boron. This material ensures excellent quality and performance for your rifle. In addition, the finish is designed to reduce friction and resist wear, so you can be confident this bolt carrier group will last for many years of use.
#5 Stern Defense SD BU45 ACP Bolt Carrier
The Stern Defense SD BU45 ACP Bolt Carrier is a high-quality bolt designed for use with Mil-Spec and Glock-pattern upper receivers. It is made from AISI steel and features a Melonite finish for durability and a propriety center and roll pins for added strength. The bolt also incorporates a new bolt design that caters to single-stage triggers with short resets.
#6 RISE Armament AR-15 Bolt Carrier Group
Introducing the RISE Armament Rifle Bolt Carrier Group. These bolt carrier groups are designed to reduce friction and increase the smoothness of each shot, thanks to high-quality steel parts and a heat-treated carrier. They’re also individually MPI tested for quality, so you can be confident in their overall performance.
#7 Radian Weapons Enhanced Black Bolt Carrier Group
The Radian Weapons Enhanced AR15/M16 Bolt Carrier Group was expertly designed to minimize carrier tilt while also reducing overall friction. These features, along with the grade 8 hardware and black nitride finish, make the Radian Weapons Bolt Carrier Group the pinnacle of performance, reliability, and durability – so choose a great new addition to your rifle.
#8 Aero Precision AR15 5.56 Bolt Carrier Group
The Aero Precision AR15 5.56 Bolt Carrier Group is a high-quality BCG that is perfect for your AR15 build. It is made from steel and has an M16-cut carrier. The carrier has forward assist serrations and the gas key is properly staked. The bolt is made from Carpenter tool steel and is shot peened and HPT tested/MPI marked. The extractor has a black o-ring insert. This BCG is way above mil-spec and perfect for those who want only the best for their AR15 build.
#9 Aero Precision 5.56 AR15 Bolt Carrier Group
Changing out your BCG is one of the easiest ways to improve your AR15, and Aero Precision’s quality is second to none. This Bolt Carrier Group is constructed from tool steel, with a steel bolt, and features a shot-peened finish and magnetic particle inspection for durability. The carrier itself features forward assist serrations, and the entire unit meets military specifications for performance.
#10 Stern Defense SD BU9 9mm Bolt Carrier
Presenting the Stern Defense SD BU9 9mm Bolt Carrier. These Bolt Carrier Groups from Stern Defense are built with AISI steel with a melonite finish to reduce friction and increase reliability. The Stern Defense Glock Pattern 9mm Bolt Carrier fits Mil-Spec and Glock-pattern upper receivers, and it’s compatible with Glock magazines and standard AR15/M16 charging handles. Pick up this 9mm BCG for your AR or Glock firearm today!
#11 TRYBE Defense Milspec Complete Bolt Carrier Group
If you need the best Bolt Carrier Groups on the market, check out the Trybe Defense. This fully assembled Bolt Carrier Group includes the bolt, bolt carrier, gas key, firing pin, cam pin, and firing pin retaining pin. Every bolt is high pressure tested (HPT) and magnetic particle inspected (MPI) before making its way to our loyal customers. The M16 Nickel Boron Bolt Carrier Group is machined from ultra-durable and corrosion-resistant steel and hardened to mil-spec conditions to provide you with years of reliable service.
#12 Failzero Fail Zero Bolt Carrier Group Bushmaster
The Failzero Fail Zero Bolt Carrier Group Bushmaster is one of the best AR-based solutions for shooters who demand reliable, high-performance reliability from their firearm. This .450-caliber bolt carrier group reliably cycles .450-caliber ammunition without fail or damage, and is purpose-built and built to last. Get the shooting gear you need to be at the top of your game with FailZero.
#13 Walker Defense Research Titanium Bolt Carrier Group
Pay attention to the Walker Defense Research Titanium Bolt Carrier Group. Made from Grade 5 titanium, this BCG is approximately 67% of the mass of a traditional steel full-auto profile BCG, while still offering exceptional durability. The bolt itself is coated in nickel boron for heat dissipation, ease of cleaning, better lubricity, and enhanced reliability. It’s an excellent addition for a lightweight build or use in competition shooting.
#14 Angstadt Arms Angstadt Bolt Carrier Group
The Angstadt Arms Angstadt Bolt Carrier Group is a top-quality, reliable BCG that is built to last. It features a strong steel case and an exposed gas hole that allow for easy maintenance and longer bolt life. The Black Nitride coating provides extra protection to the parts and allows for faster heat removal when necessary. The tapered nose and large window allow for easy and thorough cleaning of the Bolt Carrier Group.
#15 Battle Arms Development Titanium Bolt Carrier Group
Searching for a top-quality bolt carrier group that won’t weigh you down? Notice the Battle Arms Development Titanium Bolt Carrier Group. Made from aircraft-grade titanium, this carrier is extremely durable and corrosion-resistant. It’s been treated with a special surface coating for even more protection against wear and tear. The bolt is made from high-strength steel, while the gas key is billet construction and torqued/staked for security. Get the Battle Arms Development Titanium Bolt Carrier Group and enjoy the enhanced performance without sacrificing weight or durability.
#16 Phase 5 Tactical Complete Bolt Carrier Group
Presenting the Phase 5 Tactical Complete Bolt Carrier Group. This high-quality BCG is perfect for any AR-15 owner, whether you’re a first-time builder or a seasoned pro. The Phase 5 Mil-spec AR15 bolt carrier features a heat-treated and chrome-lined inner with a black phosphate coating. The complete bolt carrier group includes a cam pin, firing pin, gas key, and bolt. All bolts are HPT/MPI tested, so you can be sure of their quality and durability.
#17 SONS OF LIBERTY GUN WORKS BOLT CARRIER GROUP
The Sons of Liberty Gunworks Bolt Carrier Group includes a bolt made from Carpenter Technology No. 158 steel, which is heat-treated to military specifications and shot-peened for durability. The carrier is machined from AISI alloy steel and features a hardened gas key and properly staked screws. The entire assembly is then full-auto-test fired to ensure reliable performance. Get the Sons of Liberty Gunworks Bolt Carrier Group and rest assured you’ve got a top-notch component in your gun.
#18 2A ARMAMENT BOLT CARRIER GROUP LIGHTWEIGHT ADJUSTABLE
Do you need an adjustable bolt carrier group for your AR-15? Look at the 2A Armament Regulated Bolt Carrier! This innovative carrier features a gas regulating gate built into the carrier itself, eliminating the need for adjustable gas blocks. This allows you to tune your firearm’s gas system for optimum performance with different buffers, springs, suppressors, and barrel lengths. The RBC is fully adjustable through the port door and does not require the firearm to be broken down for adjustment.
#19 ODIN WORKS INC. – AR-15 BOLT CARRIER GROUP
If you want to buy an AR-15 bolt carrier group that doesn’t require loads of lubricant, the ODIN Works AR-15 Bolt Carrier Group is a great option. Each bolt carrier group is treated with a black-nitride finish, which provides a low-friction surface that doesn’t require as much lube to run properly. The bolt carrier group is also designed for use with traditional AR cartridges that share the 5.56 NATO case head.
#20 FORWARD CONTROLS DESIGN LLC BOLT CARRIER GROUP
The SBCG from Forward Controls Design LLC has been designed specifically for slick side uppers and uppers without a forward assist and offers superb ergonomics and performance. To ensure optimum performance, the SBCG uses OCKS (Optimized Carrier Key Screws), which are designed to offer superior holding power compared to conventional screws. So if you’re looking for a high-quality, reliable bolt carrier group that will offer unbeatable performance, the SBCG from Forward Controls Design LLC is a perfect choice.
#21 WILSON COMBAT – AR-15 BOLT CARRIER ASSEMBLY
Searching for one of the best AR-15 bolt carrier assemblies on the market, pay attention to the Wilson Combat bolt carrier assembly. This precision-machined Bolt is made from Carpenter No. 158 steel and is shot-peened for increased strength. It also includes a tool steel extractor and ejector, an appropriate extractor spring, and MPI (Magnetic Particle Inspected) and HPT (High Pressure Tested). If you need a top-quality bolt carrier assembly for your AR-15, please note the Wilson Combat bolt carrier assembly.
#22 BROWNELLS – AR15 BOLT CARRIER GROUP
Each Brownells AR-15 Bolt Carrier Group features a bolt machined from high-strength tool steel and a carrier machined from hardened steel. Both of these components, as well as every other part in the BCG, are finished in a durable nitride coating. The bolt is also magnetic-particle inspected for quality assurance. Plus, the gas key is torqued and staked for added security. So you can rest assured that this BCG will provide years of dependable service.
#23 FAXON FIREARMS LIGHTWEIGHT BOLT CARRIER COMPLETE
Are you need a bolt carrier group that is strong and durable, but also lightweight? Check out the Faxon Firearms Lightweight Bolt Carrier Complete. This bolt carrier group is made from MIL-SPEC materials and finishes, or better, so you can be confident in its quality. It is also compatible with dust covers and maintains the full-auto trip sear for full-auto and the new multi-stage trigger functionality. This bolt carrier group looks amazing and is perfect for your next build. Order yours today!
#24 J P ENTERPRISES FULL MASS BOLT CARRIER ASSEMBLY
Notice the J P Enterprises Full Mass Bolt Carrier Assembly. This custom, stainless steel bolt carrier features a 100% increase in bearing surface for smooth cycling and outstanding reliability. Includes forward assist serration and dust cover notch for tactical duty or any application requiring absolute “no-fail” operation. Five-step QPQ process produces an exceptionally hard, wear-resistant high-lubricity black finish. So if you want a high-quality, durable bolt carrier assembly that will provide years of reliable service, pay attention to the J P Enterprises Full Mass Bolt Carrier Assembly.
FAQ
What is an AR BCG?
If you’re building an AR-15 rifle, one of the most important parts to choose is the bolt carrier group or BCG. The BCG is responsible for feeding ammo into the chamber and making sure it’s properly seated, as well as ejecting spent brass when you pull the trigger. With such an important role, it’s crucial to choose a high-quality BCG that will function reliably and smoothly.
What is the best material for an AR-15 BCG?
It depends on your needs and preferences. For example, if you’re looking for a lightweight AR-15 BCG, then an aluminum BCG would be a good choice. On the other hand, if you need a durable AR-15 BCG that can withstand heavy use, then a steel or titanium BCG would be a better option. In general, aluminum AR-15 BCGs are less expensive than steel or titanium AR-15 BCGs.
How many types of AR15 BCGs?
There are two main types of AR15 BCGs: nickel boron and nitride. Both have their advantages and disadvantages, so it’s important to choose the right one for your needs.
- Nickel boron BCGs are known for their durability and easy maintenance. They’re also less likely to corrode than nitride BCGs. However, they’re more expensive than nitride BCGs and can be harder to find.
- Nitride BCGs are more affordable than nickel boron BCGs and are easier to find. They’re also less likely to rust or corrode. However, they’re not as durable as nickel boron BCGs and can be more difficult to clean.
What should I look for in an AR BCG?
When shopping for a BCG, there are several factors to consider.
- First, you’ll need to decide between a complete unit with all the parts installed, or an “unassembled” kit that allows you to customize each component. Both have their pros and cons, so it’s a matter of personal preference.
- Next, you’ll need to select the right finish for your BCG. The most popular options are black nitride and phosphate, but there are also nickel boron and titanium nitride finishes available. Each has its advantages and disadvantages, so be sure to do your research before making a decision.
- Finally, you’ll need to choose a carrier type. The two most common carrier types are M16 and AR-15, but there are also AR-10 carriers available. Again, it’s important to choose the right one for your specific needs.
What benefits of an AR-15 BCG?
Bolt carrier groups are an integral part of AR-15 rifles. They ensure the smooth and reliable operation of the firearm. A good quality AR-15 BCG can make a significant difference in the performance of your rifle.
Conclusion
Choosing the best AR15 BCG can be a daunting task. With so many options on the market, it’s hard to know which one will work best for your needs. In this article, we’ve outlined some of the most popular AR15 BCGs and provided product reviews to help you make an informed decision. We’ve also included tips on how to choose the right AR15 BCG for your needs. We hope this information was useful for you.
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