In the world of firearms, the AR-15 bolt carrier group (BCG) is a critical component. It’s responsible for the cycling of the weapon, and it’s the part that actually fires the round. Finding the right BCG for your AR-15 can be a daunting task, particularly if you’re new to the world of firearms. To make your purchase a success, here’s everything you need to know about your AR-15 Bolt Carrier Group.
What is an AR-15 Bolt Carrier Group?
A BCG is a complex component that is composed of several parts, including the bolt, the bolt carrier, the firing pin, and the cam pin. The BCG is responsible for cycling the weapon, which means it loads and fires the round each time the trigger is pulled. The BCG also contains the extractor, which is responsible for removing the spent case from the chamber after it has been fired.
What Types of BCG are Available?
When it comes to AR-15 Bolt Carrier Groups, there are several types to choose from. The most common types are the mil-spec BCG and the nickel boron BCG. Mil-spec BCGs are the most common type and are generally considered to be the most reliable. The nickel boron BCG is slightly more expensive than the mil-spec, but it is much smoother to operate and is ideal for those looking for a smoother cycling action.
What are the Benefits of a BCG?
The BCG is an essential component of your AR-15 and it is responsible for ensuring that the firearm functions correctly. A good quality BCG will ensure that the weapon cycles reliably and smoothly. It will also increase the accuracy of the firearm, as it will reduce the amount of movement in the action. Additionally, a BCG will help to reduce wear and tear on the firearm, as it will help to keep the components lubricated and in good working order.
What Should You Look for When Buying a BCG?
When looking for a BCG for your AR-15, it is important to consider the quality of the material used. Mil-spec BCGs are typically made from 8620 steel, and nickel boron BCGs are usually made from 9310 steel. It is also important to ensure that the BCG is compatible with your firearm. Most BCGs are designed to fit a standard AR-15, but some are specific to other variants, such as the .308 Winchester.
When choosing a BCG, there are a few important factors to consider to ensure maximum performance.
Material:
The material of the AR-15 bolt carrier group is one of the most important considerations when choosing the right part. The majority of BCGs are made out of either steel or aluminum. Steel is the most popular choice as it is stronger and more durable than aluminum, but it is also heavier. Aluminum is lighter, but it is not as strong or durable as steel.
Coating:
The coating on the AR-15 bolt carrier group is another important factor. A well-coated BCG will be more durable and easier to clean. The most common coatings are parkerized, anodized, and nickel boron. Parkerized coatings are the most common and provide good protection. Anodized coatings provide excellent protection against corrosion and wear. Nickel boron coatings are the most expensive option, but they are also the most durable.
Bolt:
The bolt of the AR-15 bolt carrier group is responsible for locking and unlocking the bolt when the rifle is fired. The most common bolt is the mil-spec 8620 steel or the Carpenter 158 steel. The mil-spec 8620 steel is the most common and is strong and reliable. The Carpenter 158 steel is slightly more expensive, but it is much stronger and more durable.
Gas System:
The gas system of the AR-15 bolt carrier group is responsible for cycling the action of the rifle. The gas system can be either direct impingement or piston operated. Direct impingement systems are the most common and are reliable and easy to maintain. Piston operated systems are more expensive, but they are more reliable and require less maintenance.
Extractor:
The extractor of the AR-15 bolt carrier group is responsible for extracting the spent cartridge from the chamber. The most common extractor is the mil-spec extractor, which is reliable and durable. The enhanced extractors are more expensive, but they provide improved reliability and extraction.
Firing Pin:
The firing pin of the AR-15 bolt carrier group is responsible for striking the primer of the cartridge to ignite the powder charge. The most common firing pin is the mil-spec firing pin, which is reliable and durable. The enhanced firing pins are more expensive, but they provide improved reliability and performance.
Conclusion
When it comes to purchasing an AR-15 Bolt Carrier Group, it’s important to do your research and make sure you’re getting the best quality possible. Consider the type of material used and ensure that it is compatible with your firearm. Doing so will ensure that you get a BCG that is reliable and will help to keep your firearm cycling smoothly.
