• Reading time:29 mins read
  • Post category:BCG
  • Post last modified:April 5, 2024
  • Post published:January 28, 2021


What is BCG? 🔔

It is a component of a firearm, responsible for extracting spent casings, loading fresh rounds, and ensuring the safe and reliable operation of the rifle. It consists of the bolt, bolt carrier, gas key, firing pin, and extractor.

We believe this video can be helpful for you 📺

Parts 🧩

🔩 Bolt: The bolt is the part that locks into the barrel extension and chambers the round.
🚂 Bolt Carrier: The bolt carrier houses the bolt and moves back and forth during the cycling of the firearm.
🔑 Gas Key: The gas key is attached to the bolt carrier and receives the high-pressure gas from the gas tube to drive the bolt carrier backward.
🔨 Firing Pin: The firing pin strikes the primer of the cartridge, igniting the propellant and firing the round.
🔧 Extractor: The extractor grips the rim of the spent casing and pulls it out of the chamber during the extraction process.

Bolt Carrier Group

Functions ⌛

Cycling: It facilitates the cycling of the firearm by moving back and forth during each firing cycle. It extracts and ejects the spent casing and loads a fresh round from the magazine into the chamber.
 Chambering: The bolt locks into the barrel extension, ensuring proper alignment and chambering of the round.
Firing: The firing pin strikes the primer of the cartridge, initiating the ignition process and firing the round.
Extraction: The extractor grips the rim of the spent casing and pulls it out of the chamber during the extraction process.
Gas Operation: In gas-operated firearms, the bolt carrier group receives high-pressure gas from the gas tube through the gas key, driving the BCG backward and initiating the cycling process.
Our Top Pick
ODIN Works Nitride BCG Black
If you're looking for a good deal, consider this fascinating model. It has a bolt carrier group made of Case Hardened 8620 Steel with a nitride finish and works with mil-spec uppers. The 4130 steel gas key is attached with Grade 8 hardware and the bolt is high pressure tested. You'll also get an O-ring compatible extractor and mil-spec firing pin for an authentic shooting experience. Keep an eye out for this device on the market.
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If you click this link and make a purchase, we earn a commission at no additional cost to you.

Types 🔊

🏢 Standard Bolt Carrier Group: This is the most common type, typically used in rifles chambered in standard calibers like 5.56mm or .223 Remington. It features a standard weight and design.

🗜️ Lightweight Bolt Carrier Group: They are designed to reduce overall weight and improve the rifle’s handling characteristics. They usually feature weight-reducing cuts or materials without sacrificing reliability.

🎣 Enhanced Bolt Carrier Group: Enhanced items often come with additional features or modifications to improve performance and reliability. They may have enhanced extractors, enlarged ports for better gas flow, or upgraded coatings for increased durability.

🖤 Nickel Boron Bolt Carrier Group: Nickel Boron-coated items have a durable and self-lubricating coating, offering increased corrosion resistance, reduced friction, and ease of cleaning.

Bolt Carrier Group Review | Best Nickel Boron BCG

ImageProductBrand
Aero Precision .308 Black NitrideAero PrecisionBUY
ODIN Works Nitride Bolt Carrier Group, BlackODIN WorksBUY
FosTech Outdoors AR-15 Complete Bolt Carrier GroupFosTechBUY
Spikes Tactical M16 Bolt Carrier GroupSpikes TacticalBUY
RISE Armament AR-15 Bolt Carrier GroupRISE ArmamentBUY
FosTech Outdoors AR-15 Complete Lite Bolt Carrier Group, Low MassFosTech OutdoorsBUY
JP Enterprises Complete JPBC Bolt Carrier GroupBolt Carrier GroupBUY
Aero Precision AR15 5.56 Bolt Carrier GroupAero PrecisionBUY
ODIN Works Bolt CarrierODIN WorksBUY
FailZero M16/M4 Bolt Carrier Group, No HammerFailZeroBUY
TRYBE Defense Milspec Complete 9mm Hybrid Bolt Carrier GroupTRYBE DefenseBUY
Ballistic Advantage .308 Bolt Carrier GroupBallistic AdvantageBUY
Alpha Shooting Sports ALPHA Premium 5.56 Nitride V2 Bolt Carrier GroupALPHABUY
FailZero AR15 Bolt Carrier Group w/ HammerFailZeroBUY
Midwest Industries 5.56/AR15 C158 Bolt Carrier GroupMidwest IndustriesBUY

1# Aero Precision .308 BCG (Black Nitride)

Aero Precision .308 Black Nitride

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Specification
  • Material: 4130 Steel
  • Caliber: .308 Caliber

The first model we are going to review is a good but rather expensive solution for big-bore builds. This .308/7.72 BCG is made of case-hardened 8620 steel, and it’s also high-pressure tested and magnetic particle inspected. Thanks to high-quality coating and solid elements, you can enjoy a long-lasting and smooth experience. The carrier has forward assist serrations for better performance.

Pros:
  • Durability
  • Easy to use
  • Forward assist serrations
  • Smooth shooting experience
Cons:
  • Price

 

2# ODIN Works Nitride BCG Black

ODIN Works Nitride Bolt Carrier Group, Black

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Specification
  • Material: Steel
  • Caliber: 6.5mm Grendel
  • Gun Model: AR-15

For a lower price, you can find this interesting model. A bolt carrier group made of Case Hardened 8620 Steel with nitride finish that is compatible with mil-spec uppers. An attached Grade 8 hardware 4130 steel gas key and high-pressure tested bolt together with an O-ring compatible extractor and mil-spec firing pin allows you to feel what the real shooting is. So don’t miss this device if you see it on the market.

Pros:
  • Price
  • Range of features
  • Low friction
  • Compatibility
Cons:
  • Durability

 

3# FosTech Outdoors AR-15 Complete BCG

FosTech Outdoors AR-15 Complete Bolt Carrier Group

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Specification
  • Gun Model: AR-15

If you need a full-auto BCG compatible with Echo AR-II and the Echo Sport, this model is a good purchase. Good balance, affordable price, and durable materials — this is what you want to see in a bolt carrier group for your AR-15 rifle. Based on our experience nickel-boron coating reduces the need for lubricants and ensures corrosion resistance, so you don’t have to worry about the lifetime.

Pros:
  • Good balance
  • Durability
  • Nickel-boron finish
  • Full-auto
Cons:
  • Low on features

 

4# Spikes Tactical M16 BCG

Spikes Tactical M16 Bolt Carrier Group

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Specification
  • Material: 8620 Tool Steel
  • Caliber: 5.56x45mm NATO
  • Gun Model: M16/AR 15

One more full-auto M16 BCG made of mil-spec 8620 tool steel that offers good characteristics for a quite standard but yet not cheap price. All elements are high-pressure tested and MPI marked. The bolt is shot-peened, and the carrier key is firmly attached to Grade 8 hardware. The O-ring on the extractor facilitates installation and use. It’s a reliable model that is totally worth buying if you need such parameters.

Video review

Pros:
  • Durability
  • HPT and MPI
  • Shot-peened bolt
  • O-ring on the extractor
Cons:
  • Price

 

5# RISE Armament AR-15 BCG

RISE Armament AR-15 Bolt Carrier Group

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Specification
  • Material: 9310 Steel, 8620 Steel
  • Caliber: 5.56x45mm NATO, .223 Remington
  • Gun Model: M16, AR-15
  • Weight: 0.82 lb

A nice, durable, and well-tested bolt carrier group for 5.56x45mm NATO, .223 Remington calibres can make you satisfied not only with decent characteristics but also with a nice price. A magnetic particle-inspected bolt made of 9310 steel, a heat-treated 8620 tool steel carrier, reduced friction, and smooth operation will make your shooting experience simple and enjoyable. The gas key is staked properly, and the extractor is shot-peened.

Pros:
  • Durability
  • MPI bolt
  • Heat-treated carrier
  • Shot-panned extractor
  • Reduced friction
Cons:
  • Low on features

 

6# FosTech Outdoors AR-15 Complete Lite BCG

FosTech Outdoors AR-15 Complete Lite Bolt Carrier Group, Low Mass

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Specification
  • Gun Model: AR-15

What have we got here? This is a low-mass bolt carrier group that is designed for 5.56/.223. calibre and it has some peculiarities. First of all, it’s really lightweight, and it’s only 8.6oz. Due to such sizes, this model is not mil-spec compatible. The finish is one of the strongest advantages of the BCG. If you want to make a lightweight but solid and reliable build with no glitches and snags, it’s a perfect solution. However, it will cost you some money, so be ready for it.

Pros:
  • Durability
  • Finish
  • Low-mass design
  • Quality
Cons:
  • Price

 

7# JP Enterprises Complete JPBC BCG

JP Enterprises Complete JPBC Bolt Carrier Group

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Specification
  • Material: Stainless Steel
  • Caliber: .308 Caliber
  • Gun Model: AR-10
  • Gun Frame Size: Large
  • Hand: Right

Talking about lightweight BCGs, we should mention a 9mm bolt carrier group designed by JP Enterprises. It’s one of the most reliable 9mm systems, and it features reduced stroke length, reduced bolt bounce, and a tighter firing pin channel. Our findings show that thanks to these elements, the bolt carrier group is very durable but lightweight. The finish here is also good, it increases reliability and allows you to forget about the constant use of lubricants.

Pros:
  • Durability
  • Lightweight design
  • Coating
  • Reduced friction
Cons:
  • Price

 

8# Aero Precision AR15 5.56 BCG

Aero Precision AR15 5.56 Bolt Carrier Group

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Specification
  • Color: Black
  • Material: 8620 Steel
  • Caliber: 5.56x45mm NATO
  • Gun Model: AR-15

In the 8th place, we have an M-16-cut bolt carrier group machined from 8620 steel and designed for 5.56x45mm NATO caliber. Despite the low price, this model has a nice range of features that any professional or amateur shooter will like. First of all, materials are solid. Besides, the BCG is shot-peened, high-pressure tested, and magnetic particle tested. The gas key is firmly attached and properly staked. The extractor has an O-ring insert for easier use. In addition to this, forward assist serrations make operation smoother.

Pros:
  • Price
  • Durability
  • HPT and MPI
  • O-ring insert
  • Forward assist serration
Cons:
  • None

 

9# ODIN Works BCG

ODIN Works Bolt Carrier

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Specification
  • Color: Black
  • Gun Model: M4, AR-15

Another model by ODIN that makes customers happy for a long time. There is nothing special about this bolt carrier group — it’s all about the perfect balance between the price and characteristics. Here you will find a mil-spec compatible BCG made of case-hardened 8620 steel and coated with a black nitride finish. All details are HPT tested and MPI marked, the operation is smooth and simple. Build an accurate, reliable, and cheap rifle with custom elements like this.

Video review

Pros:
  • Price
  • Durability
  • Nitride finish
  • HPT and MPI
Cons:
  • Low on features

 

10# FailZero M16/M4 BCG

FailZero M16/M4 Bolt Carrier Group, No Hammer

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Specification
  • Gun Model: M16/M4

Regarding this model, it’s a cheap but great solution for 5.56/.223 calibers for M16/M4/AR15 rifles. It’s super easy to install on the majority of mil-spec uppers, and it ensures nice durability thanks to the EXO nickel-boron coating that reduces friction and corrosion. It can be a great add-on for your firearm, so don’t think twice if you can buy it. This will be a good buy.

Video review

Pros:
  • Price
  • Durability
  • EXO nickel-boron coating
  • Easy installation
Cons:
  • Low on features

 

11# TRYBE Defense Milspec Complete 9mm Hybrid BCG

TRYBE Defense Milspec Complete 9mm Hybrid Bolt Carrier Group

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Specification
  • Material: 8620 Steel
  • Caliber: 9mm Caliber

If you have a 9mm AR-15 carabine, this BCG is what you need. It’s suitable for Colt- and Glock-style lowers and it ensures good durability and smooth, fast operation. This model is made of 8620 steel and has a nitride finish, which means no extra friction while operating and long service life. It has mil-spec dimensions.

Pros:
  • Price
  • Lightweight
  • Durability
  • Nitride finish
Cons:
  • Low on features

 

12# Ballistic Advantage .308 BCG

Ballistic Advantage .308 Bolt Carrier Group

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Specification
  • Caliber: .308 Caliber

Thanks to an 8620 alloy steel carrier and a bolt made of 9310 alloy steel, this 7.62/.308 BCG designed by Ballistic Advantage ensures nice performance and durability. The only downside of this model is, probably, the price because it’s not low. All the characteristics are good, and the features are useful. Except for high-quality elements, this bolt carrier group offers a properly staked gas key, a shot-peened bolt, high-pressure tested and MPI marked details, Viton O-ring, and forward serrations. Those who don’t have budget limits should take a look at this model.

Pros:
  • Durability
  • Properly staked gas key
  • HPT and MPI marked elements
  • Shot-peened bolt
  • Forward serration
Cons:
  • Price

 

13# Alpha Shooting Sports ALPHA Premium 5.56 Nitride V2 BCG

Alpha Shooting Sports ALPHA Premium 5.56 Nitride V2 Bolt Carrier Group

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Specification
  • Color: Black
  • Material: Steel
  • Caliber: 5.56x45mm NATO

We know you like inexpensive solutions for your custom builds. Take a look at this model because it has everything you need: an 8620-steel carrier coated with a nitride finish, improved carrier geometry, reduced friction, corrosion resistance, and so on. Although the price is not high, the quality is good. The parts are MPI marked and tested. This is a reliable solution.

Pros:
  • Price
  • Durability
  • Improved carrier geometry
  • Nitride finish
Cons:
  • Low on features

 

14# FailZero AR15 BCG

FailZero AR15 Bolt Carrier Group w/ Hammer

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Specification
  • Color: Nickel
  • Gun Model: AR 15

Previously, we’ve been reviewing the same bolt carrier group but without a hammer. This model has a hammer and offers the same range of features. Basically, it’s a good, balanced, and very durable bolt carrier group that comes with a hammer. The nickel finish makes it even better, ensuring smooth operation and resistance. Improve any semi-auto AR-15 rifle with a good-looking and easy-to-use BCG.

Video review

Pros:
  • Easy to use and install
  • Durability
  • Nickel finish
  • Hammer
Cons:
  • Compatibility

 

15# Midwest Industries 5.56/AR15 C158 BCG

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Specification
  • Calibre: 5.56mm
  • Gun Make: AR Platform
  • Gun Model: M16, AR-15
  • Gun Type: Rifle

And the last one is a balanced bolt carrier group that offers good characteristics for a low price. The point that the manufacturer decided to use lighter materials to lower the price and improve other vital parameters. So, the bolt is made of Carpenter 158, and it’s heat-treated, shot-peened, and also MPI Tested. In collaboration with Nickel-Boron coating, this bolt carrier group ensures awesome performance.

Video review

Pros:
  • Price
  • Heat-treated
  • Shot-peened
  • MPI marked
  • Nickel-boron coating
Cons:
  • Durability

 

Installation 🚨

Ensure the firearm is unloaded and the safety is engaged. Always prioritize safety when working with firearms. Begin by separating the upper and lower receivers of the firearm. If necessary, remove the handguard or any other components that may obstruct access to the Carrier Group.

With the upper receiver exposed, position the bolt carrier group so that the bolt face is aligned with the chamber of the barrel. Slide the bolt carrier group into the upper receiver, ensuring the charging handle aligns with the channel in the Bolt Carrier Group. Push the bolt carrier group fully forward until it locks into place. The forward assist (if present) should engage the bolt carrier.

Next, insert and secure the retaining pin (also known as the cam pin) through the designated hole in the bolt carrier. Rotate the cam pin until it aligns with the slot in the upper receiver. This ensures proper alignment and smooth operation. If your firearm has a gas system, ensure the gas key aligns with the gas tube. Use the appropriate tools to tighten the gas key screws securely.

🔧 Finally, the function checks the Bolt Carrier Group to ensure it moves freely and smoothly within the upper receiver. Cycle the charging handle to verify proper operation. If necessary, clean and lubricate the bolt carrier group following the manufacturer’s recommendations for maintenance.

We believe this video can be helpful for you 📺

FAQ 🛑

How To Lube Bolt Carrier Group

Ensure the firearm is unloaded and the safety is engaged. Always prioritize safety when working with firearms.

  1. 🛠️ Separate the upper and lower receivers of the firearm. Remove the BCG from the upper receiver by pulling back the charging handle and sliding it out.
  2. 🧼 Clean it: Before lubrication, make sure it is clean and free from debris or excessive fouling. Use a cleaning solvent or gun cleaner to remove any carbon buildup or residue. Wipe it with a clean cloth or cleaning patches.
  3. 💧 Apply lubricant: Use an appropriate firearm lubricant or gun oil to apply a light coat of lubrication to the moving parts. Focus on the contact surfaces where metal rubs against metal, such as the bolt lugs, cam pin, and inside the bolt carrier.
  4. 🔧 Pay attention to key areas: Ensure the gas rings on the bolt receive a thin coat of lubricant to aid in smooth cycling. Additionally, apply lubricant to the extractor claw and spring, as well as the firing pin and its channel.
  5. 🧹 Wipe off excess: After applying the lubricant, use a clean cloth or cleaning patches to wipe off any excess oil. It should have a thin and even layer of lubrication, with no pooling or dripping.
  6. 🔩 Reassemble, ensuring proper alignment and engagement of the retaining pin and gas key (if applicable).

We believe this video can be helpful for you 📺

What is the difference between Full Auto vs Semi Auto Bolt Carrier Group?

🚫 Semi-Auto (SA): It is designed for use in semi-automatic firearms. It lacks a sear trip surface, which is a necessary feature for engaging the sear in fully automatic firearms. They typically have a rounded or chamfered back end.

Full Auto (FA): It, also known as an M16 bolt carrier group, has a sear trip surface at the rear of the carrier. This surface engages with the sear, allowing for continuous automatic fire as long as the trigger is held down. FA bolt carrier groups have a flat back end to accommodate the sear engagement.

Please watch this video to learn more information 📺

What are the finishes of Bolt Carrier Group?

🌑 Phosphate Finish: Phosphate or parkerized finish is a common and cost-effective option. It provides a dark, matte black appearance and offers good corrosion resistance.

🌬️ Nickel Boron Finish: Nickel Boron coating, also known as NiB or NiBo, provides a silver or bright grey appearance. It offers excellent corrosion resistance, reduced friction, and ease of cleaning.

🌕 Nickel Teflon Finish: Nickel Teflon (NiTFE) coating offers a smooth, self-lubricating surface with a silver or light grey appearance. It provides good corrosion resistance and enhances overall durability.

🌈 Cerakote Finish: Cerakote is a ceramic-based coating that comes in various colors. It offers excellent corrosion resistance, abrasion resistance, and can provide a customized appearance.

💠 Diamond-Like Carbon (DLC) Finish: DLC coating provides a hard, low-friction, and wear-resistant surface. It offers enhanced durability and corrosion resistance.

🌟 Titanium Nitride (TiN) Finish: TiN coating gives a gold-colored appearance and provides excellent wear resistance and durability.

What are the materials of Bolt Carrier Group?

🔩 Bolt: The bolt is typically made from high-quality steel alloys such as 9310 steel or Carpenter 158 steel. These materials provide excellent strength, durability, and resistance to wear and tear.

🚂 Bolt Carrier: The bolt carrier is also usually made from steel, commonly 8620 steel. This material offers good strength and durability while maintaining an appropriate weight for proper cycling.

🔑 Gas Key: The gas key, which attaches to the bolt carrier and receives high-pressure gas, is often made from steel as well. It must withstand the stresses of gas operation and proper torque when installed.

🔨 Firing Pin: Firing pins are typically made from durable materials such as stainless steel or hardened alloy steel. These materials provide strength and resistance to wear.

🔧 Extractor: Extractors are commonly made from steel, with materials like tool steel or carbon steel used for their strength and reliability in gripping and extracting spent casings.

How To Clean Bolt Carrier Group?

Ensure the firearm is unloaded and the safety is engaged. Always prioritize safety when working with firearms.

  1. 🛠️ Separate the upper and lower receivers of the firearm. Remove the bolt carrier group from the upper receiver by pulling back the charging handle and sliding the BCG out.
  2. 🧹 Use a cleaning solvent or gun cleaner to spray it, focusing on the bolt, bolt carrier, gas key, and other components. Allow the solvent to penetrate and break down any fouling or carbon buildup.
  3. 🖐️ Using a nylon or brass brush, scrub the surfaces of the carrier group to remove carbon deposits and other residue. Pay attention to the bolt face, gas rings, and other hard-to-reach areas. Be gentle to avoid damaging the components.
  4. 🚿 Rinse the bolt carrier group with clean solvent or water to remove the loosened fouling and residue.
  5. 🧼 Apply a small amount of gun cleaner or solvent to a cleaning patch or brush, and clean the inside of the bolt carrier and the bolt’s locking lugs.
  6. 🧽 Use a clean, dry cloth or cleaning patches to wipe and remove any remaining solvent or moisture. Ensure all surfaces are dry before proceeding.
  7. 💧 Apply a light coat of lubricant or gun oil to the moving parts, including the bolt, bolt carrier, and gas rings. Pay attention to the areas where metal surfaces rub against each other for smooth operation.
  8. 🔩 Reassemble the bolt carrier group into the upper receiver, ensuring proper alignment and engagement of the retaining pin and gas key (if applicable).
  9. 🧹 Perform a function check by cycling the charging handle to ensure smooth and reliable operation of the bolt carrier group .

We believe this video can be helpful for you 📺

Conclusion ⏰

The Bolt Carrier Group is a vital component of a firearm and is responsible for the extraction, ejection, and chambering of rounds. It consists of various parts, including the bolt, bolt carrier, gas key, firing pin, and extractor. Understanding the different types, materials used, finishes available, and proper maintenance procedures ensure the reliable and optimal performance of the firearm. Whether it’s installing, cleaning, or lubricating, following safety guidelines and manufacturer recommendations are essential. Keeping the item in good condition through regular maintenance helps maintain the firearm’s functionality and longevity. 🧩🛒

Tags: #Best #BCG #Nikel Boron #9mm #AR 15 #308 #Coating #Folowing #300 Blackout #Grendel 6.5 #Budget #Lube #Matrix #Review #For The Money #7.62×39 #5.56 #Glock #Nitride #Odin #Aero Precision

Tatiana Kursakova
Tatiana Kursakova
Professional shooter, traveller, survivalist
My love of guns is in my blood, since childhood I have spent hours enjoying the beauty of guns and adored going through their parts.

Tactical accessories are another passion of mine that I could write about endlessly - my house and garage are full of tactical gadgets, luckily my family shares my interests.

I'm infatuated with traveling that's why work at one place with a daily routine and standard schedule is not for me. I prefer copywriting and English tutoring as a freelancer. I live in a male family among constant talks about cars, guns, hunting, fishing, and, of course, dinosaurs 😊.

My husband is an obsessed hunter, and my two sons are fans of «Demolition Ranch» of YouTube blogger Matt Carriker. They are my best consultants about weapon and all-around ammunition topics. All together we share a love for adventures. Every camping or mounting hiking trip is a "small survival", giving irreplaceable experiences. Nothing can be better than the satisfaction of observing wild nature.

Motto: «Born in Ukraine, made is the USA».

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Mr.Fleon
Mr.Fleon
8 months ago

I absolutely adore my Nickel Boron Rise Armament bolt carrier group (BCG) for its excellent lubrication and effortless upkeep. It surpasses the smoothness of my other BCGs with DLC and Nitride finishes that are installed in my other rifles. With improved finishes, I spend less time cleaning via brushing and wiping, compared to the time taken to clean a traditional phosphate finish.

    Trinity
    Trinity
    8 months ago

    A trustworthy source who has worked on a lot of ARs mentioned that Nickel Boron could create problems due to its uneven finish. This could cause the bolts to have improper head spacing and become too large. As a result, I recommend choosing one of the nitride finishes or the standard MILSPEC phosphate instead. If you do decide to go with Nickel Boron, it’s important to use a headspace gauge to check it, as this is a good practice to follow for any type of finish.

      Oportunist
      Oportunist
      8 months ago

      Hi! Can I upgrade my Bolt Carrier Group?

        Natalia
        8 months ago
        Reply to  Oportunist

        🟣 Yes, there are various aftermarket upgrades available for Bolt Carrier Groups. These upgrades can include enhanced coatings, lightweight designs, enhanced extractors, and improved gas keys. However, it is important to ensure that any upgrades you choose are compatible with your firearm and comply with applicable laws and regulations.

          FakeHunter
          FakeHunter
          8 months ago

          Thank you for the helpful information. I am in the process of gathering parts for my first AR build, and I have already bought a FailZero NiB BCG. Your experience confirms that even products from the same manufacturer can vary in quality.

            Portman
            Portman
            8 months ago

            I mostly use BCG’s from RCA because I really like them and they are reasonably priced. The company that makes them also manufactures BCGs for Noveske and owns its own metal treatment process.

              Eric
              Eric
              8 months ago

              My BCM rifle has a Lantac installed, and it functions well with useful features for suppressed firing. I haven’t encountered any problems yet, and it is easy to clean.

                hector
                hector
                8 months ago

                Thank you for providing me with all the information about the various qualities of steel and finishes available for a BCG. It has been really helpful, especially since I am building my first AR-10 and had no prior knowledge about it.

                  Brody
                  Brody
                  8 months ago

                  Hello. Can I install a full-auto Bolt Carrier Group in my semi-auto rifle?

                    Natalia
                    8 months ago
                    Reply to  Brody

                    🟨 While it is technically possible to install a full-auto Bolt Carrier Group in a semi-auto rifle, it is illegal in many jurisdictions. The possession or installation of a full-auto BCG in a semi-automatic firearm without proper licensing and compliance with applicable laws can result in serious legal consequences.