The AR-15 Bolt Carrier Group (BCG) is an essential part of the AR-15 rifle. It is responsible for the cycling of the rifle and the firing of the ammunition. It is a complex but reliable piece of equipment that needs to be maintained, inspected, and serviced regularly. This article will provide an overview of the components of the AR-15 BCG, how it works, and how to maintain it.
Components of the AR-15 Bolt Carrier Group
The AR-15 Bolt Carrier Group consists of several components: the bolt, the bolt carrier, the firing pin, the cam pin, and the gas key. The bolt is the main part of the BCG and is what holds the ammunition in place. The bolt carrier is the part that houses the bolt and is responsible for cycling the rifle. The firing pin is responsible for striking the primer of the ammunition and igniting the powder. The cam pin is responsible for locking the bolt in place and is also known as the bolt catch. Lastly, the gas key is responsible for directing the gas from the ammunition to the bolt carrier and is also known as the bolt carrier key.
How the AR-15 Bolt Carrier Group Works
The AR-15 Bolt Carrier Group works by cycling the action of the rifle. When the trigger is pulled, the hammer is released and strikes the firing pin, which in turn strikes the primer of the ammunition and ignites the powder. The gas from the ammunition is then directed to the bolt carrier, which cycles the action of the rifle. The bolt then locks in place by way of the cam pin, which is held in place by the gas key.
Maintenance of the AR-15 Bolt Carrier Group
The AR-15 Bolt Carrier Group should be inspected and serviced regularly in order to ensure its reliable operation. It should be inspected for any signs of wear and tear, and any damaged or worn parts should be replaced immediately. It should also be cleaned and lubricated with a high-quality lubricant to prevent corrosion and wear.
Tools and Supplies Needed
The tools and supplies you will need to properly maintain your AR-15 Bolt Carrier Group are fairly simple and inexpensive. You will need a good quality gun oil or lubricant, a cleaning brush, and a rag. You may also want to purchase a specialized AR-15 cleaning kit if you do not already have one.
Maintenance Steps
1. Cleaning. Before you begin any maintenance on your Bolt Carrier Group, it is important to make sure that it is clean. Use a cleaning brush and gun oil to remove any dirt or debris from the BCG. Make sure to pay special attention to the firing pin, bolt, and extractor.
2. Lubricate. Once the BCG is clean, it is important to properly lubricate it. Use a gun oil or specialized AR-15 lubricant to lubricate all of the components of the BCG. Make sure to pay special attention to the firing pin and the bolt.
3. Inspect. After you have lubricated the BCG, it is important to inspect it for any signs of wear or damage. Look for any cracks, chips, or gouges. If you find any, replace the BCG as soon as possible.
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Conclusion
The AR-15 Bolt Carrier Group is an essential part of the AR-15 rifle. It is responsible for the cycling of the rifle and the firing of the ammunition. It is a complex but reliable piece of equipment that needs to be maintained, inspected, and serviced regularly in order to ensure its reliable operation. This article has provided an overview of the components of the AR-15 BCG, how it works, and how to maintain it.