First Impressions of WMD Guns AR-15/M16/M4 Full Auto Bolt Carrier Group (BCG) – NiB-X Black Nickel Boron
The AR-15 platform is known for its modularity and customization options, and the bolt carrier group (BCG) is arguably one of the most crucial components. A reliable BCG ensures smooth cycling, proper extraction, and ultimately, the overall performance of the rifle. The WMD Guns AR-15/M16/M4 Full Auto Bolt Carrier Group (BCG) – NiB-X Black Nickel Boron promises enhanced durability, ease of cleaning, and reliable function, thanks to its NiB-X coating.
I was seeking a BCG upgrade to improve the reliability and longevity of my primary AR-15, which sees heavy use in training and recreational shooting. I wanted something that could withstand high round counts and harsh conditions, and also simplify the cleaning process after long range days.
Upon unboxing, the WMD Guns BCG presented a sleek, dark appearance thanks to the NiB-X Black Nickel Boron finish. The coating felt smooth and appeared evenly applied across all surfaces. It had a satisfying weight, suggesting the use of quality materials.
I considered other options like a standard phosphated BCG, a chrome BCG, and even a DLC (Diamond-Like Carbon) coated BCG from other manufacturers such as Bravo Company Manufacturing (BCM) and Daniel Defense. The NiB-X coating from WMD Guns stood out due to its purported superior lubricity and ease of cleaning. This combination of features, along with the attractive price point, led me to choose the WMD Guns offering.
My initial impression was one of cautious optimism. While the finish was visually appealing and felt promising, the true test would be in its performance under real-world conditions. I was excited to install it and see if it lived up to the claims of increased reliability and ease of maintenance.
Real-World Testing: Putting WMD Guns AR-15/M16/M4 Full Auto Bolt Carrier Group (BCG) – NiB-X Black Nickel Boron to the Test
First Use Experience
I first tested the WMD Guns BCG at an outdoor shooting range in varying conditions; the day started sunny, but later it was windy with blowing dust and sand. The BCG was installed in a 16-inch AR-15 chambered in 5.56 NATO. I ran approximately 300 rounds of mixed ammunition through the rifle, including brass-cased FMJ and steel-cased ammunition.
The WMD Guns BCG cycled smoothly from the outset, with no failures to feed, extract, or eject. The enhanced lubricity of the NiB-X coating seemed to contribute to a noticeably smoother action. No issues were experienced, which speaks to the proper gas key staking.
Extended Use & Reliability
After several months of use and over 2000 rounds fired, the WMD Guns BCG has proven to be exceptionally reliable. The NiB-X coating has held up well, showing no signs of chipping or flaking. It continues to provide smooth cycling even when the rifle is heavily fouled.
Maintenance is where the WMD Guns BCG truly shines. Carbon fouling wipes away with minimal effort, making cleaning significantly faster and easier compared to a standard phosphated BCG. A quick wipe-down with a cloth and a light application of lubricant is all that’s needed to keep it running smoothly.
Previously, I used a standard mil-spec BCG. The WMD Guns BCG noticeably outperforms it in terms of ease of cleaning and resistance to carbon buildup. The reliability is also better, especially when running the gun hard and getting it hot.
Breaking Down the Features of WMD Guns AR-15/M16/M4 Full Auto Bolt Carrier Group (BCG) – NiB-X Black Nickel Boron
Specifications
- The WMD Guns BCG is designed for AR-15/M16/M4 platforms and is compatible with 5.56x45mm NATO. It is also compatible with .223 Remington and .300 Blackout calibers.
- The bolt is made from 9310 steel, case hardened, shot peened, and magnetic particle inspected for flaws. This ensures high strength and resistance to cracking and fatigue.
- The carrier is constructed from 8620 alloy steel, heat treated and case hardened for enhanced durability. This provides a robust platform for the bolt to cycle within.
- The firing pin is manufactured, heat-treated, hardened, and chromed to government specifications, enhancing its resistance to wear and corrosion. The gas key is hardened to USGI specifications and attached using grade 8 fasteners, then NiB-X Black coated and staked per military specifications, ensuring a secure and leak-free gas seal.
- The cam pin is manufactured, heat treated, hardened, and certified per Government drawings. It is also NiB-X Black coated for enhanced durability and smooth operation.
Performance & Functionality
The WMD Guns BCG excels in its primary function: ensuring reliable cycling of the AR-15. The smooth NiB-X coating reduces friction, allowing the bolt to move freely within the carrier. This leads to consistent and reliable extraction and ejection.
The WMD Guns BCG exceeded my expectations. I’ve experienced no malfunctions directly attributable to the BCG. It’s a solid upgrade over a standard mil-spec BCG.
Design & Ergonomics
The WMD Guns BCG’s NiB-X Black finish not only enhances its performance but also gives it a sleek and professional appearance. The finish is smooth to the touch and contributes to the overall feeling of quality.
There is no learning curve associated with the WMD Guns BCG. It is a drop-in replacement for a standard AR-15 BCG and requires no special tools or modifications for installation.
Durability & Maintenance
The materials and coatings used in the WMD Guns BCG are designed for long-term durability. The 9310 steel bolt, 8620 carrier, and NiB-X coating provide excellent resistance to wear, corrosion, and carbon buildup.
Maintenance of the WMD Guns BCG is incredibly easy. The NiB-X coating makes cleaning carbon fouling significantly faster and simpler than with a traditional phosphated BCG.
Accessories and Customization Options
The WMD Guns AR-15/M16/M4 Full Auto Bolt Carrier Group (BCG) – NiB-X Black Nickel Boron does not come with any accessories beyond the standard components of a BCG (bolt, carrier, firing pin, cam pin, and gas key). However, it is fully compatible with any standard AR-15 upper receiver and charging handle.
Because the BCG is mil-spec, it is compatible with a wide range of AR-15 accessories from various brands, including aftermarket charging handles from Radian Weapons and Geissele Automatics, as well as various buffer systems. The user feedback stated “Nothing fancy, but it was ready to work right out of the box.” This is true and is beneficial for all users.
Pros and Cons of WMD Guns AR-15/M16/M4 Full Auto Bolt Carrier Group (BCG) – NiB-X Black Nickel Boron
Pros
- Enhanced Reliability: The smooth NiB-X coating and high-quality materials ensure consistent cycling and reduce the likelihood of malfunctions.
- Easy Maintenance: The NiB-X coating makes cleaning carbon fouling significantly faster and simpler than with a traditional phosphated BCG.
- Durable Construction: The 9310 steel bolt, 8620 carrier, and hardened components are built to withstand high round counts and harsh conditions.
- Drop-In Replacement: The WMD Guns BCG is a direct replacement for a standard AR-15 BCG, requiring no special tools or modifications for installation.
- Attractive Finish: The NiB-X Black Nickel Boron finish gives the BCG a sleek and professional appearance.
Cons
- The NiB-X coating, while durable, can be susceptible to scratches if subjected to excessive abrasion.
- Although the price is reasonable, there are cheaper phosphate options available.
Who Should Buy WMD Guns AR-15/M16/M4 Full Auto Bolt Carrier Group (BCG) – NiB-X Black Nickel Boron?
The WMD Guns AR-15/M16/M4 Full Auto Bolt Carrier Group (BCG) – NiB-X Black Nickel Boron is perfect for AR-15 owners who prioritize reliability, ease of maintenance, and durability. It is a great choice for competitive shooters, recreational shooters who put high round counts through their rifles, and anyone who wants to upgrade from a standard mil-spec BCG.
Those on a very tight budget or those who are not concerned about ease of cleaning may find a standard phosphate BCG sufficient for their needs.
A quality AR-15 lubricant, such as Lucas Oil Extreme Duty Gun Oil, is a must-have accessory to further enhance the performance and longevity of the WMD Guns BCG. A quality bore snake and chamber brush will assist in speedy cleanup.
Conclusion on WMD Guns AR-15/M16/M4 Full Auto Bolt Carrier Group (BCG) – NiB-X Black Nickel Boron
The WMD Guns AR-15/M16/M4 Full Auto Bolt Carrier Group (BCG) – NiB-X Black Nickel Boron is a worthwhile upgrade for any AR-15 owner seeking enhanced reliability, easier maintenance, and increased durability. The NiB-X coating delivers on its promise of smooth cycling and effortless cleaning, making it a significant improvement over standard mil-spec BCGs.
At a price of $159.99, the WMD Guns BCG offers excellent value for its performance and features. It’s a well-built, reliable component that will undoubtedly enhance the shooting experience and extend the life of your AR-15.
I wholeheartedly recommend the WMD Guns AR-15/M16/M4 Full Auto Bolt Carrier Group (BCG) – NiB-X Black Nickel Boron to anyone looking to upgrade their AR-15. Invest in this BCG, and you’ll be rewarded with improved performance, easier maintenance, and peace of mind knowing your rifle is equipped with a high-quality, dependable component.