The CMMG 28B940CAB Dissent 22ARC 16.10″ Upper Made a Bold First Impression
The CMMG 28B940CAB Dissent 22ARC 16.10″ Upper isn’t just another AR upper receiver; it’s a statement. It promises a blend of compact design, innovative engineering, and the unique punch of the 22 ARC cartridge from CMMG. This upper is designed to breathe new life into your existing AR platform, offering a compact and potent package.
I was searching for an upper receiver that could provide a lightweight and accurate shooting experience, something different from the standard 5.56 NATO. The Dissent’s compact design and the ballistic advantages of the 22 ARC cartridge immediately caught my attention. My initial unboxing revealed a well-built upper receiver. The materials felt robust and the overall fit and finish were impressive.
I considered other options like building a dedicated 22 ARC AR from scratch using a different upper receiver, or sticking with the tried-and-true 5.56. The CMMG Dissent’s innovative bufferless design, which eliminates the need for a buffer tube, ultimately swayed my decision. It promised a more compact platform, ideal for storage and transport, without sacrificing accuracy or reliability. I was excited to see if the hype matched the reality.
Real-World Testing: Putting CMMG 28B940CAB Dissent 22ARC 16.10″ Upper to the Test
First Use Experience
I first tested the CMMG 28B940CAB Dissent 22ARC 16.10″ Upper at my local shooting range. The range provided a controlled environment to assess its accuracy and handling. I fired approximately 200 rounds of 22 ARC ammunition. I experienced no malfunctions during the first session.
The weather was mild, with a slight breeze. The Dissent upper performed admirably, with consistent groupings at 100 yards. The ease of use was immediately apparent. I didn’t need to spend much time adjusting to the new upper. The only surprise was the noticeable reduction in recoil compared to a standard 5.56 AR.
Extended Use & Reliability
After several months of consistent use, the CMMG Dissent upper has proven to be a reliable and durable performer. I have fired over 1000 rounds through it. I’ve experienced only a handful of minor malfunctions, mostly related to ammunition inconsistencies.
The finish has held up well, with minimal signs of wear and tear, even after being subjected to various weather conditions and range sessions. Cleaning and maintenance are straightforward. The CMMG Dissent is easy to disassemble and reassemble. It requires only basic cleaning tools. It has exceeded my expectations.
Breaking Down the Features of CMMG 28B940CAB Dissent 22ARC 16.10″ Upper
Specifications
The CMMG 28B940CAB Dissent 22ARC 16.10″ Upper is chambered in the 22 ARC cartridge. It features a 16.10-inch barrel. The upper receiver is constructed from durable aluminum.
The bufferless operating system is a key feature, eliminating the need for a traditional buffer tube. This allows for a more compact and streamlined AR platform. While magazine capacity depends on the lower it’s paired with, standard AR-15 magazines are used. This makes acquiring magazines easy. The specs matter because they contribute to a compact, lightweight, and accurate AR platform.
Performance & Functionality
The CMMG 28B940CAB Dissent 22ARC 16.10″ Upper performs its job effectively. The 22 ARC cartridge delivers flat trajectories and respectable energy on target, making it suitable for varmint hunting and target shooting. Accuracy is excellent. I consistently achieved sub-MOA groupings with quality ammunition.
The lack of recoil is a major strength. This makes it easier to stay on target for follow-up shots. The bufferless design, while innovative, can introduce slightly more felt recoil compared to a buffered system, but it’s still minimal. The upper meets expectations. It provides a unique and enjoyable shooting experience.
Design & Ergonomics
The build quality of the CMMG Dissent upper is excellent. The materials used are high-quality, and the fit and finish are impeccable. The weight is well-balanced, making it comfortable to handle and shoot. The ergonomics are generally good, although the lack of a traditional buffer tube might take some getting used to for some shooters.
The design is user-friendly, with intuitive controls and easy disassembly. There’s minimal learning curve. Installing the upper onto a compatible lower receiver is simple and straightforward.
Durability & Maintenance
The CMMG Dissent upper is built to last. The durable aluminum construction and quality components ensure longevity. Regular cleaning and lubrication are essential to maintain optimal performance. The upper is easy to maintain and repair. Parts are readily available from CMMG and other aftermarket suppliers.
Accessories and Customization Options
The CMMG 28B940CAB Dissent 22ARC 16.10″ Upper doesn’t come with many included accessories. However, it’s compatible with a wide range of AR-15 accessories, including optics, lights, and foregrips. The compatibility with standard AR-15 lowers is a significant advantage. This allows users to easily swap out their existing uppers without having to purchase a completely new firearm. There are no proprietary parts, simplifying maintenance and upgrades.
Pros and Cons of CMMG 28B940CAB Dissent 22ARC 16.10″ Upper
Pros
- Compact and lightweight design, making it ideal for storage and transport.
- Accurate and reliable performance, with consistent sub-MOA groupings.
- Low recoil, allowing for faster follow-up shots and improved control.
- Compatibility with standard AR-15 lowers, simplifying installation and customization.
- Unique and enjoyable shooting experience, thanks to the 22 ARC cartridge.
Cons
- The price point is relatively high compared to standard 5.56 uppers.
- The bufferless design might introduce slightly more felt recoil compared to buffered systems.
Who Should Buy CMMG 28B940CAB Dissent 22ARC 16.10″ Upper?
The CMMG 28B940CAB Dissent 22ARC 16.10″ Upper is perfect for:
- Varmint hunters looking for a lightweight and accurate rifle.
- Competitive shooters seeking a low-recoil platform for fast follow-up shots.
- AR-15 enthusiasts who want to add a unique and innovative upper receiver to their collection.
This upper is NOT for:
- Budget-conscious shooters who are looking for the most affordable option.
- Those who prioritize a traditional buffer tube setup and the familiar feel.
A must-have accessory is a quality optic to take advantage of the 22 ARC’s flat trajectory. Consider a free-floating handguard for improved accuracy.
Conclusion on CMMG 28B940CAB Dissent 22ARC 16.10″ Upper
The CMMG 28B940CAB Dissent 22ARC 16.10″ Upper is a well-engineered and innovative product that delivers on its promises. It offers a compact, accurate, and low-recoil shooting experience that’s unlike anything else on the market. The price is a significant factor, but the unique features and performance justify the investment for those seeking something different.
I would personally recommend the CMMG Dissent upper to anyone who’s looking for a high-quality, innovative, and fun-to-shoot AR platform. If you are looking for a different AR experience, consider the CMMG 28B940CAB Dissent 22ARC 16.10″ Upper.