Are you currently looking for the best 6.5 Creedmoor bolt carrier group for your AR-10? If so, your search is about to come to an end because we’re going to go over the top three best 6.5 Creedmoor bolt carrier groups in 2020.
Best Budget Pick: PSA Gen 2 Nitride 6.5 Creedmoor Bolt Carrier Group
The PSA Gen 2 Nitride 6.5 Creedmoor Bolt Carrier Group is built out of a hardened 8620 steel with a black nitride finish for good rust resistance. But the real standout features are the double ejectors which make extraction of spent shell casings a smoother process, and also means that it can be used with fully automatic AR-10s if need be.
Best Value Pick: Brownells 308 AR Bolt Carrier Group
The Brownells 308 AR Bolt Carrier Group is an excellent value for the money overall. It’s built out of durable steel with a nitride finish to ensure longevity and reduce friction, and the entire group has been magnetic particle inspected to ensure that it’s safe to use.
Best Overall Pick: Aero Precision AR 308 Bolt Carrier Group
The Aero Precision AR 308 Bolt Carrier Group is our choice for a BCG for your 6.5 Creedmoor. It’s built out of a hardened steel material with a chrome finish coated further in black nitride, making it as durable and rust resistant as you could ask for. Each part of this bolt carrier group has been magnetic particle inspected to ensure maximum safety and reliability.
The 6.5 Creedmoor is an excellent round with superb ballistics. It’s not difficult to see why this round has been absolutely exploding in popularity over the last few years. If you have an AR-10 chambered in 6.5 Creedmoor and are looking to upgrade it, or if you are otherwise looking to build a new 6.5 Creedmoor AR-10 from the ground up, a good bolt carrier group is absolutely imperative to have.
In this article, we’ll dive into the merits of the 6.5 Creedmoor round, the qualities that make a great 6.5 Creedmoor bolt carrier, and then the top three best 6.5 Creedmoor bolt carriers that we believe the market has to offer for this year.
Why Go With A 6.5 Creedmoor AR-10?
Before we even begin out discussion of bolt carrier groups, it’s worth answering this question: why even go with the 6.5 Creedmoor round in the first place?
The 6.5 Creedmoor has become one of the most popular centerfire rifle rounds in the twelve years it has existed. It’s a type of 6mm round that first appeared in 2008.
.30 caliber rifles such as the .308 Winchester, .30-06 Springfield, and .300 Win Mag have always been the most popular with American shooters due to the fact that they were also widely used in the military. 6mm cartridges were more common throughout Europe but found their way over to the United States as well and have risen in popularity over the decades. In many ways, the 6.5 Creedmoor represents the pinnacle of the 6mm series of rounds in the United States, at least in terms of popularity.
The 6.5 Creedmoor actually developed out of the .260 Remington round, which was an excellent round but was also too long to be used in reliably in magazine fed, semi-automatic rifles. The 6.5 Creedmoor is a shorter round so it’s more reliable, just as the .308 Winchester was created to be a more reliable, shorter version of the .30-06 Springfield.
The 6.5 Creedmoor has proven to be successful due to its superior terminal ballistics than the .308 over long ranges. Plain and simple, the 6.5 Creedmoor kicks a little less than the .308 while hitting harder and flatter at longer distances too.
An AR-10 chambered in the 6.5 Creedmoor round is a formidable weapon, because it fulfills many different roles and fulfills those roles well. The 6.5 Creedmoor round is capable of bringing down any kind of big game in North America, including deer and elk. This combined with the long range accuracy potentials of the round, make it a superb choice for hunting.
Meanwhile, since the AR-10 is a semi-automatic and magazine fed weapon, a 6.5 Creedmoor AR-10 would be a solid choice for a tactical weapon as well. It could be used for home defense, or better yet, as a general purpose SHTF weapon where it could be used for anything from defensive purposes to hunting.
If you had to bug out into the woods during an SHTF situation, for instance, an AR-10 in 6.5 Creedmoor would be a very practical firearm choice.
What Is The Bolt Carrier Group?
The bolt carrier group is the beating heart of your AR-10. Without the bolt carrier group, or BCG, your AR-10 literally would not be capable of firing.
As you may already know, the bolt carrier group is located in the upper receiver portion of your AR-10. Take your 6.5 CM upper receiver, and then slide the entire bolt carrier group through the rear of the receiver until it locks. You can then merge the complete upper and complete lower receiver together in order to create a complete rifle.
When you fire your AR-10, the gases created from the fired 6.5 Creedmoor round will be redirected back down through the gas tube to the bolt carrier. The gas will full up the chamber in the bolt carrier group, forcing the carrier group back against the recoil spring of the rifle. Speaking of recoil, a great way to limit the felt recoil fo your rifle is to install 6.5 Creedmoor muzzle brake.
The more the bolt carrier travels backward, the more it twists until it unlocks from the chamber. The entire action of the rifle is then permitted to cycle back rearward until the spent shell casing is ejected out of the rifle, and a new round is stripped out of the magazine and inserted into the chamber.
If the bolt carrier group did not exist on your AR-10, the firing pin could not strike the primer, and the rifle would therefore not be able to fire in the first place.
Here are the primary components that make up each bolt carrier group:
The terms ‘bolt carrier’ and ‘bolt carrier group’ are often confused as referring to the same thing, when in reality they do not. This is because the bolt carrier is a part of the overall bolt carrier group, or BCG. The bolt carrier, however, contains all of the pieces necessary to allow the bolt carrier group to operate.
The bolt carrier works by contacting the spring and the buffer and absorbing the force and gas from the fired round. The best bolt carriers are built out of 9310 steel, 8620 steel, or 158 steel for the best durability and longevity.
Carrier Key or Gas Key
The terms ‘carrier key’ and ‘gas key’, on the other hand, are indeed used to refer to the same thing. The carrier key is located on the top of the bolt and resembles little more than a small protrusion. Its primary purpose is to absorb the gas that travels down the gas tube of the AR when the rifle is fired.
The carrier key is hollowed out on the inside, permitting the gas to travel through it and then into the rest of the carrier. Without the carrier key, the bolt and extractor would not be able to rotate.
Bolt Gas Rings
The bolt gas rings are designed to trap the gas of the spent round as the gas expands. This allows the bolt to work. Without the gas rings, the gas would simply disperse into the rest of the upper receiver, and the weapon would not be able to operate.
Bolt and Extractor
The bolt and extractor are essentially the same unit but serve tow entirely different purposes. The bolt looks like a star on the front, and it allows the overall bolt carrier group to lock or unlock within the chamber. When it comes time to unlock the bolt carrier group, the bolt will rotate at fifteen degrees.
Meanwhile, the extractor hooks onto the outer rim of each 6.5 Creedmoor round and holds the shells in place in order to load them into the chamber. When the gun cycles, the spring on the ejector forces the casing to exit the receiver via the ejection port, before a new 6.5 Creemoor round from the magazine is cycled into the weapon.
The firing pin strikes the primer of the 6.5 Creedmoor round when you pull the trigger. Without the firing pin, the weapon would be incapable of firing. The pin is located at the head of the bolt.
Last but certainly not least, the camp pin stops the bolt from rotating too far once it unlocks. You can find the camp pin in the carrier through a hole located next to the bolt. Another hole located in the middle of the pin permits the firing pin to slide through it so it may come into contact with the firing pin of the round.
Buyer’s Guide For A 9mm Bolt Carrier Group
These are the most important factors to consider when looking for a new bolt carrier group for your 6.5 Creedmoor AR-10:
Always make sure that your bolt carrier group has been magnetic particle inspected or marked as MPI. This means that the bolt carrier group has been placed into a magnetic field created by two electromagnetics, with a liquid solution of magnetic particles used to cover the steel. This will identify any cracks or fissures located in the steel and ensure that the overall bolt carrier group is safe to use over the long term.
Any bolt carrier group that comes magnetic particle inspected will be guaranteed to last for several thousand rounds of sustained firing. Keep in mind that when you shoot your AR-10, the bolt carrier group is literally subjected to tens of thousands of pounds for each square inch.
In addition to coming magnetic particle inspected, your bolt carrier group should also come with HPT, or high pressure testing. This means that the bolt carrier group is able to fire high pressure cartridges, including rounds that are above SAAMI specifications. Even if you do not plan on firing high pressure 6.5 Creedmoor cartridges, it’s still a good idea to get a BCG that is capable of handling such ammunition as it can last longer.
If you want the process of installing your bolt carrier group in your AR-10 to be as quick as possible, you should make sure that you get a drop-in bolt carrier group. This means that you can easily install the BCG into your AR-10 without the aid of any extra tools or of a professional gunsmith.
Last but not least, don’t neglect price. The whole reason to get a bolt carrier group assembled rather than buying and putting together all of the parts on your own is to save money. That being said, bolt carrier groups still aren’t cheap. The best advice is to buy the highest quality bolt carrier group that you can afford.
Real also: Our buying guide on the best 6.5 Creedmoor barrels.
The 3 Best 6.5 Creedmoor Bolt Carrier Groups For 2020
Now that we’ve covered why you need to upgrade your bolt carrier group for your AR-10, here are our top three choices for a 6.5 Creedmoor bolt carrier group:
Brownells 308 AR Bolt Carrier Group
The Brownells 308 AR Bolt Carrier Group is technically made for the .308 Winchester and 7.62x51mm NATO cartridges, but it will work for a 6.5 Creedmoor as well. This is one of the most affordable bolt carrier groups on the market, but it’s also extremely high quality. The quality is built out of a hardened steel and treated in a black nitride finish for excellent corrosion and rust resistance.
Each element of this bolt carrier group, more importantly, has undergone magnetic particle inspection. This ensures that literally every square centimeter of the bolt carrier group is durable and safe. The bolt of this carrier group is built out of even harder steel than the rest of the group and is designed to last for tens of thousands of shots.
In conclusion, the Brownells 308 AR Bolt Carrier Group is an excellent choice for a bolt carrier group that is both durable and affordable. It’s built out of high end steel, has a nitride finish for excellent rust and corrosion resistance, and comes magnetic particle inspected to ensure that every square centimeter of the group is safe to use.
- Heat treated for extra durability
- Steel is extra durable
- Relatively affordable for a bolt carrier group
- Comes with a nitride finish for extra rust and corrosion resistance
- Pin is rather short in length
Aero Precision AR 308 Bolt Carrier Group
The Aero Precision AR 308 Bolt Carrier Group is another BCG that is labeled as being made for the .308 Winchester round but still works for the 6.5 Creedmoor.
This is a high end bolt carrier group that, while expensive, steel delivers you with what you pay for. This bolt carrier group comes with a hard chrome coating finish, which is both appealing visually and greatly helps to improve the longevity of the device as well. Over the chrome you have a black nitride finish while helps take durability and rust resistance to the next level.
Each part of this BCG has also been magnetic particle inspected and tested inside high pressure chambers to ensure maximum durability and safety.
The Aero Precision AR 308 Bolt Carrier Group is one of the highest quality bolt carrier groups for a 6.5 Creedmoor in existence. It’s built out of a high quality steel with a hard chrome coating finish that is further covered in a durable nitride. Each part of this bolt carrier group has also come magnetic particle inspected to ensure that it’s safe to use.
- All of the components are coated to ensure solid reliability and to reduce friction
- Comes magnetic particles inspected
- Has a hard chrome finish for extra durability
- Black nitride finish over the chrome
PSA Gen 2 Nitride 6.5 Creedmoor Bolt Carrier Group
The PSA Gen 2 Nitride 6.5 Creedmoor Bolt Carrier group is built out of 8620 steel and coated in a black nitride finish, making it extremely heat resistant so it can easily handle sustained firing.
This bolt carrier group is actually unique because it comes with double ejectors to make the ejection of spent shell casings a smooth and seamless process. This also means that this carrier group could be used on fully automatic AR-10s if need be because the double ejectors can handle the rapid ejection of spent rounds.
Take note that the firing pin is a little bit small, so you will need to make sure that your AR-10 has been sized properly before you install.
The PSA Gen 2 Nitride 6.5 Creedmoor Bolt Carrier group is built out of 8620 steel with a nice black nitride finish for extra rust resistance. The main standout feature are the double ejectors, which make extraction of spent shell casings a smooth process. It also means that this BCG could be used with a fully automatic AR-10 if necessary.
- Very durable
- Has a steel bolt assembly
- Built out 8620 steel
- Has a nitride finish for extra rust resistance
- Firing pin is of a smaller size
The 6.5 Creedmoor is an excellent rifle round thanks to its great ballistics and trajectories at long ranges. An AR-10 chambered in 6.5 Creedmoor would be a superb rifle to use for big game hunting, tactical use, or as a general purpose SHTF weapon.
Remember, a bolt carrier group is what enables your AR-10 to function in the first place. If you want to upgrade your existing AR-10 or build a new one from the ground up, the bolt carrier group is perhaps the most essential component of all to invest in.
Any one of the three bolt carrier groups that we have covered here today will be a superb option for your AR-10. Alternatively, remember the buyer’s guide that we have covered earlier as well, and you can likewise ensure that you find a good bolt carrier aside from the ones that we’ve recommended.
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