CMMG  |  SKU: RSR-CMMG55BA419

CMMG - Bolt Carrier Group, M16 for 5.56mm/.223 and 300 BLK

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Description

The CMMG Bolt Carrier Group, M16 is a complete Mil-Spec assembly designed for use with 5.56mm/.223 and 300 BLK calibers. This bolt carrier group is meticulously crafted to ensure reliability and performance, making it an ideal choice for both professional and recreational shooters. With its robust construction and premium materials, this BCG is built to withstand rigorous use while maintaining smooth operation.

Constructed with high-quality materials, the bolt is made from 9310 Steel and features a Salt Bath Nitride Finish for enhanced durability and corrosion resistance. The carrier is crafted from 8620 Steel, also finished with Salt Bath Nitride, ensuring a long-lasting, smooth performance. Additionally, the extractor is made from 4140 Steel, providing reliable extraction under various conditions.

All CMMG products come with a Lifetime Quality Guarantee, assuring you of their commitment to quality and customer satisfaction.

Key Features

  • Caliber Compatibility: 5.56x45mm, .223, and 300 BLK
  • Bolt Material: 9310 Steel with Salt Bath Nitride Finish
  • Carrier Material: 8620 Steel with Salt Bath Nitride Finish
  • Extractor Material: 4140 Steel with Salt Bath Nitride Finish
  • Finish: Salt Bath Nitride for enhanced durability
  • Color: Black
  • Mil-Spec Design: Ensures compatibility and reliability
  • Lifetime Quality Guarantee: Backed by CMMG's commitment to quality

Specifications

  • Type: Bolt Carrier Group
  • SubCategory: Bolts & Bolt Carrier Groups
  • Product UPC: 852005002431
  • Manufacturers Part Number: 55BA419

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Frequently Asked Questions

What calibers is the CMMG Bolt Carrier Group compatible with?

The CMMG Bolt Carrier Group is compatible with 5.56x45mm, .223, and 300 BLK calibers. This versatility makes it an excellent choice for shooters who use multiple calibers. Whether you're involved in tactical training or recreational shooting, this BCG ensures reliable performance across these popular calibers. Its Mil-Spec design guarantees seamless integration with standard AR-15 platforms, offering flexibility and ease of use.

What materials are used in the construction of the CMMG Bolt Carrier Group?

The CMMG Bolt Carrier Group is constructed using high-quality materials to ensure durability and performance. The bolt is made from 9310 Steel, known for its strength and toughness, while the carrier is crafted from 8620 Steel. Both components feature a Salt Bath Nitride finish, enhancing corrosion resistance and longevity. Additionally, the extractor is made from 4140 Steel, providing reliable extraction in various conditions. These materials and finishes contribute to the BCG's ability to withstand rigorous use.

How does the Salt Bath Nitride finish benefit the CMMG Bolt Carrier Group?

The Salt Bath Nitride finish on the CMMG Bolt Carrier Group offers several advantages. This finish significantly enhances the durability and corrosion resistance of the components, making them suitable for various environmental conditions. The smoothness provided by the finish also contributes to the BCG's reliable operation, reducing friction and wear during cycling. For shooters, this means a longer-lasting component that requires less frequent maintenance.

What makes the CMMG Bolt Carrier Group a Mil-Spec assembly?

The CMMG Bolt Carrier Group adheres to Mil-Spec standards, ensuring compatibility and reliability. Mil-Spec, short for military specifications, means that the BCG meets the rigorous standards set by the military for performance and compatibility. This includes precise dimensions and material quality, ensuring that the BCG fits and functions correctly in standard AR-15 platforms. For users, this translates to a dependable component that can be trusted in both professional and recreational settings.

How does the CMMG Bolt Carrier Group ensure reliable extraction?

The CMMG Bolt Carrier Group ensures reliable extraction through its high-quality extractor. Made from 4140 Steel, the extractor is designed to handle the stresses of repeated firing and extraction cycles. The material's strength, combined with the Salt Bath Nitride finish, provides the necessary durability and resistance to wear. This ensures that spent casings are consistently and efficiently removed, reducing the likelihood of malfunctions during operation.

What are the benefits of using a CMMG Bolt Carrier Group in a 300 BLK setup?

Using the CMMG Bolt Carrier Group in a 300 BLK setup provides several benefits. The BCG's robust construction and material quality ensure it can handle the unique pressures and cycling characteristics of the 300 BLK round. This caliber often requires components that can manage subsonic and supersonic loads, and the CMMG BCG is designed to perform reliably across these variations. Its compatibility with 300 BLK makes it a valuable component for versatile shooting setups.

How does the CMMG Bolt Carrier Group perform in adverse conditions?

The CMMG Bolt Carrier Group is engineered to perform reliably even in adverse conditions. Its construction from durable materials like 9310 and 8620 Steel, combined with the Salt Bath Nitride finish, provides excellent resistance to corrosion and wear. This makes it suitable for use in environments where moisture, dirt, and extreme temperatures could otherwise impact performance. Shooters can depend on this BCG to function smoothly and consistently, regardless of the conditions they encounter.

What maintenance is required for the CMMG Bolt Carrier Group?

Regular maintenance of the CMMG Bolt Carrier Group is essential to ensure optimal performance. Despite its durable construction and finish, routine cleaning and lubrication are recommended to maintain smooth operation. After each use, it's advisable to clean the BCG to remove any carbon build-up and apply a light coat of lubricant to reduce friction. This helps prevent wear and extends the lifespan of the components, ensuring reliable function over time.

Is the CMMG Bolt Carrier Group suitable for both professional and recreational use?

Yes, the CMMG Bolt Carrier Group is suitable for both professional and recreational use. Its Mil-Spec design and high-quality materials make it a reliable choice for various shooting applications. Whether used in a professional tactical environment or for recreational target shooting, this BCG is built to deliver consistent performance. Its compatibility with multiple calibers further enhances its versatility, making it a valuable component for any AR-15 setup.

What is the significance of the Lifetime Quality Guarantee for the CMMG Bolt Carrier Group?

The Lifetime Quality Guarantee on the CMMG Bolt Carrier Group underscores the manufacturer's commitment to quality. This guarantee provides peace of mind to users, assuring them of the product's durability and reliability. It reflects CMMG's confidence in their craftsmanship and materials, offering support and service should any issues arise. For shooters, this means investing in a BCG that is backed by a promise of long-term performance and satisfaction.