First Impressions of Moriarti M4/M16 Full Auto Comp Bolt Carrier Group
After countless builds and upgrades over a decade, I thought I had seen it all when it came to AR-15 components. Then, I stumbled upon the Moriarti M4/M16 Full Auto Comp Bolt Carrier Group, and my interest was piqued. Moriarti, known for balancing affordability with functionality, promised a robust, reliable BCG, and the allure of improved performance with its “Comp” design was hard to ignore.
My primary motivation for seeking out this particular BCG stemmed from a desire to enhance the reliability of a recent .300 AAC Blackout build. I was looking for a BCG that could withstand the pressures of both supersonic and subsonic rounds while maintaining smooth cycling. I needed something dependable enough to trust in dynamic training scenarios.
The Moriarti BCG arrived in simple packaging, which is typical, but the finish and heft of the carrier immediately impressed me. The nitride coating looked even and felt smooth to the touch, promising a durable, low-friction surface. Its weight felt comparable to other full-auto BCGs I’ve used, instilling confidence in its robust construction.
Compared to a standard mil-spec BCG from Aero Precision, the Moriarti BCG seemed to have a more refined finish. Compared to a pricier, lightweight BCG from a high-end manufacturer, the Moriarti option felt more substantial, suggesting a focus on durability over weight reduction. Ultimately, I chose the Moriarti BCG because it seemed to offer the best balance of features, build quality, and price for my specific needs.
My initial impression was one of cautious optimism. I was excited to test the Moriarti M4/M16 Full Auto Comp Bolt Carrier Group and see if it lived up to its promises, but also wary of potential issues that can sometimes plague budget-friendly components.
Real-World Testing: Putting Moriarti M4/M16 Full Auto Comp Bolt Carrier Group to the Test
First Use Experience
My initial testing of the Moriarti M4/M16 Full Auto Comp Bolt Carrier Group took place at an outdoor range in varying weather conditions. The first day was dry and sunny, allowing for comfortable shooting and accurate observation. The second day presented a challenge with light rain and muddy conditions.
The Moriarti BCG was installed in my .300 AAC Blackout AR-15 pistol and subjected to a mix of supersonic and subsonic ammunition. Initially, I ran several magazines of each, focusing on observing any cycling issues or failures to feed. The BCG performed flawlessly from the start, exhibiting smooth and consistent cycling with both types of ammunition.
The ease of use was immediately apparent; no break-in period was required. There were no malfunctions of any kind were observed. After the first day’s shooting, I did a quick field strip and cleaning of the BCG.
Extended Use & Reliability
After several months of regular use, the Moriarti M4/M16 Full Auto Comp Bolt Carrier Group has proven to be a reliable and durable component. I have fired approximately 1,000 rounds through the BCG with no failures. The Nitride coating still looks great!
Signs of wear are minimal. The finish shows some expected wear marks on the bearing surfaces, but no significant scratches or damage. Cleaning the BCG is also quite easy.
Compared to other BCGs I’ve used, the Moriarti BCG stands out for its reliability and ease of maintenance. It certainly outperforms some cheaper mil-spec options I’ve tested in the past. While a few high-end BCGs may offer slightly smoother cycling, the Moriarti BCG provides excellent performance at a more affordable price point.
Breaking Down the Features of Moriarti M4/M16 Full Auto Comp Bolt Carrier Group
Specifications
The Moriarti M4/M16 Full Auto Comp Bolt Carrier Group boasts several key specifications that contribute to its performance and durability. It is chambered for .300 AAC Blackout. This caters specifically to builds chambered in that popular caliber.
- Material: Constructed from 8620 Tool Steel, offering a balance of strength and resistance to wear.
- Finish: Features a Nitride finish, providing enhanced corrosion resistance and reduced friction.
- Cut: It has an M16-cut carrier, making it compatible with both AR-15 and M16 platforms.
- Hand: Designed for Right-handed users.
- Features: Includes serrations for improved grip and a properly staked gas key.
These specifications are crucial for reliable operation and longevity. The 8620 tool steel ensures the carrier can withstand the stresses of repeated firing, while the Nitride finish minimizes friction and protects against corrosion. The M16-cut carrier enhances compatibility, and the properly staked gas key guarantees consistent gas transfer for reliable cycling.
Performance & Functionality
The Moriarti M4/M16 Full Auto Comp Bolt Carrier Group performs admirably in its intended role, providing reliable and consistent cycling in AR-15 platforms. The serrations enhance grip. The properly staked gas key ensures proper gas transfer.
Its strengths lie in its reliability, smooth cycling, and ease of maintenance. One area for potential improvement would be a more detailed explanation of the “Comp” feature and its specific benefits. It definitely exceeds expectations at its price point.
Design & Ergonomics
The Moriarti BCG features a standard, functional design that prioritizes reliability over aesthetics. Build quality is solid, and the materials used feel durable and well-made. While the weight is comparable to other full-auto BCGs, it may be slightly heavier than some lightweight options.
The design is user-friendly, requiring no special tools or modifications for installation. No significant learning curve is required.
Durability & Maintenance
Based on my experience, the Moriarti M4/M16 Full Auto Comp Bolt Carrier Group is built to last. The Nitride finish and robust construction suggest a long service life with proper care.
Maintenance is straightforward, requiring only regular cleaning and lubrication. Disassembly and reassembly are simple.
Accessories and Customization Options
The Moriarti M4/M16 Full Auto Comp Bolt Carrier Group does not come with any additional accessories beyond the standard components of a BCG. It is compatible with a wide range of AR-15 accessories.
The BCG is compatible with aftermarket triggers, charging handles, and buffer systems, allowing for a high degree of customization. The standard dimensions and M16-cut carrier ensure compatibility with most popular AR-15 components.
Pros and Cons of Moriarti M4/M16 Full Auto Comp Bolt Carrier Group
Pros
- Reliable and consistent cycling with both supersonic and subsonic .300 AAC Blackout ammunition.
- Durable 8620 Tool Steel construction with a corrosion-resistant Nitride finish.
- Smooth operation and easy maintenance.
- Affordable price point compared to high-end BCG options.
- Properly staked gas key ensures consistent gas transfer for reliable cycling.
Cons
- The “Comp” feature could be better explained or more aggressively designed for noticeable recoil reduction.
- The packaging is basic and lacks detailed information about the product.
Who Should Buy Moriarti M4/M16 Full Auto Comp Bolt Carrier Group?
The Moriarti M4/M16 Full Auto Comp Bolt Carrier Group is perfect for AR-15 enthusiasts, particularly those building or upgrading .300 AAC Blackout rifles. It is also suitable for recreational shooters, and home defense users who prioritize reliability and value.
Those seeking a competition-grade BCG with advanced recoil reduction features may want to explore more specialized (and expensive) options. A must-have modification would be a quality aftermarket charging handle to ensure smooth and reliable operation.
Conclusion on Moriarti M4/M16 Full Auto Comp Bolt Carrier Group
In summary, the Moriarti M4/M16 Full Auto Comp Bolt Carrier Group offers a compelling combination of reliability, durability, and affordability. The price is indeed justified!
I would absolutely recommend it to anyone seeking a dependable BCG for their AR-15, particularly in .300 AAC Blackout. The Moriarti M4/M16 Full Auto Comp Bolt Carrier Group is a solid choice. Now is the time to upgrade your rifle!