First Impressions of CMMG 28B3D0CSG ENDEAVOR MK4 22ARC 20 SNGRY
The CMMG 28B3D0CSG ENDEAVOR MK4 22ARC 20 SNGRY is a unique AR-platform firearm chambered in the interesting .22 ARC cartridge. CMMG is known for its innovative approach to AR designs, and this particular model intrigued me with its promise of long-range performance in a smaller caliber. I was eager to see if this rifle could bridge the gap between the traditional AR-15 and longer-range precision platforms.
What drew me to this specific model was the desire for a lightweight, accurate rifle capable of reaching out further than my standard 5.56 AR-15. I wanted something for varmint hunting and recreational long-range shooting without the recoil and expense of larger centerfire calibers. The .22 ARC seemed like a perfect fit, and the CMMG platform promised AR-15 familiarity with enhanced performance.
The rifle arrived well-packaged. My initial impression was positive, the build quality appeared solid, and the overall weight was noticeably lighter than some of my other AR-pattern rifles. The fit and finish seemed clean, without any obvious blemishes or loose parts.
Compared to my Ruger AR-556 and my custom-built AR-15 in .223 Wylde, the CMMG ENDEAVOR MK4 stood out with its unique caliber and promise of improved ballistics. I chose this over a .22LR AR because I wanted more reach and less wind drift. I also preferred it to a larger caliber AR-10 because of the reduced weight and cost of ammunition.
I was definitely excited upon receiving the CMMG 28B3D0CSG ENDEAVOR MK4 22ARC 20 SNGRY. The promise of accurate, long-range shooting in a familiar AR platform was extremely appealing. It had the potential to become my go-to rifle for a variety of shooting activities.
Real-World Testing: Putting CMMG 28B3D0CSG ENDEAVOR MK4 22ARC 20 SNGRY to the Test
First Use Experience
I first took the CMMG ENDEAVOR MK4 to my local outdoor shooting range. I set up targets at 100, 200, and 300 yards to get a feel for the rifle’s accuracy and handling. The weather was clear and sunny, providing ideal conditions for testing.
The rifle performed remarkably well straight out of the box. The recoil was minimal, making it easy to stay on target for follow-up shots. The trigger had a clean break and a consistent pull weight.
The only initial issue I encountered was with the included magazine. It occasionally failed to feed properly, causing a few malfunctions. I resolved this by switching to a different magazine that I had on hand.
Extended Use & Reliability
After several months of regular use, the CMMG ENDEAVOR MK4 has proven to be a reliable and accurate platform. I’ve used it in various conditions, including hot, dusty days at the range and cooler, slightly damp hunting trips. It has consistently performed well.
I’ve noticed no significant wear and tear on the rifle. The finish has held up well, and all the components remain tight and secure. The rifle requires minimal maintenance, consisting primarily of cleaning and lubricating the bolt carrier group after each shooting session.
Compared to my previous experiences with other AR-pattern rifles, the CMMG stands out for its accuracy and low recoil. It outperforms my 5.56 AR-15 at longer ranges, thanks to the superior ballistics of the .22 ARC cartridge. It has become a favorite for precision shooting and varmint hunting.
Breaking Down the Features of CMMG 28B3D0CSG ENDEAVOR MK4 22ARC 20 SNGRY
Specifications
The CMMG 28B3D0CSG ENDEAVOR MK4 22ARC 20 SNGRY boasts several key specifications that contribute to its performance. It is chambered in .22 ARC, a relatively new cartridge designed for long-range accuracy. The rifle features a 20-inch barrel, which helps to maximize the velocity and ballistic performance of the .22 ARC cartridge.
The rifle utilizes a direct impingement gas system, a standard design for AR-15 platforms. It comes without a magazine included, a notable point to consider when purchasing. The absence of a magazine included could be viewed as a downside for some buyers.
- Caliber: .22 ARC
- Barrel Length: 20 inches
- Operating System: Direct Impingement
- Magazine Included: No
- Manufacturer: CMMG
These specifications matter because they directly impact the rifle’s performance and suitability for specific applications. The 20-inch barrel enhances accuracy at longer ranges, while the .22 ARC cartridge offers a flatter trajectory and reduced wind drift compared to smaller calibers like .22LR. The absence of a magazine requires an additional purchase.
Performance & Functionality
The CMMG ENDEAVOR MK4 performs exceptionally well in its intended role as a long-range precision rifle. The accuracy is impressive, consistently delivering sub-MOA groups at 100 yards with quality ammunition. The recoil is very manageable, making it easy to maintain sight alignment and shoot accurately for extended periods.
One of the strengths of this rifle is its ability to reach out to longer distances with relative ease. The .22 ARC cartridge maintains its velocity and energy well, allowing for accurate shots at 300 yards and beyond. The trigger is crisp and consistent, contributing to the rifle’s overall accuracy.
The main weakness is the magazine issue I initially encountered. While I was able to resolve it by using a different magazine, it is still a potential concern. The absence of a magazine included with the rifle may also be a negative for some buyers.
The CMMG 28B3D0CSG ENDEAVOR MK4 22ARC 20 SNGRY largely exceeds my expectations. It delivers excellent accuracy and long-range performance in a lightweight and easy-to-handle platform. It is an excellent choice for varmint hunting and recreational long-range shooting.
Design & Ergonomics
The CMMG ENDEAVOR MK4 features a well-designed and ergonomic AR-15 platform. The build quality is excellent, with high-quality materials and precise machining. The rifle feels solid and well-balanced in the hand.
The rifle is user-friendly and requires no special training or experience to operate. The controls are familiar to anyone who has used an AR-15 before, and the rifle is easy to disassemble and clean. The only potential learning curve is becoming familiar with the ballistics of the .22 ARC cartridge.
Durability & Maintenance
The CMMG ENDEAVOR MK4 is built to last. The components are made from high-quality materials that are designed to withstand the rigors of regular use. The finish is durable and resistant to scratches and wear.
The rifle is easy to maintain and repair. The components are readily available, and the rifle can be easily disassembled and cleaned with standard AR-15 tools. The rifle requires minimal maintenance, consisting primarily of cleaning and lubricating the bolt carrier group.
Accessories and Customization Options
The CMMG 28B3D0CSG ENDEAVOR MK4 22ARC 20 SNGRY is compatible with a wide range of AR-15 accessories and customization options. You can easily add optics, grips, stocks, and other accessories to tailor the rifle to your specific needs and preferences. The absence of a magazine, however, necessitates an initial purchase of magazines.
The rifle is also compatible with various aftermarket barrels, allowing you to further enhance its accuracy and performance. The compatibility with standard AR-15 accessories makes the CMMG ENDEAVOR MK4 a versatile platform for customization.
Pros and Cons of CMMG 28B3D0CSG ENDEAVOR MK4 22ARC 20 SNGRY
Pros
- Excellent Accuracy: Delivers sub-MOA groups at 100 yards.
- Low Recoil: Easy to shoot accurately for extended periods.
- Long-Range Performance: The .22 ARC cartridge offers a flat trajectory and reduced wind drift.
- AR-15 Compatibility: Compatible with a wide range of AR-15 accessories and customization options.
- Durable Construction: Built to last with high-quality materials.
Cons
- Magazine Issues: The included magazine may experience feeding problems.
- No Magazine Included: Rifle does not come with a magazine, requiring an additional purchase.
Who Should Buy CMMG 28B3D0CSG ENDEAVOR MK4 22ARC 20 SNGRY?
The CMMG 28B3D0CSG ENDEAVOR MK4 22ARC 20 SNGRY is perfect for varmint hunters who need a lightweight and accurate rifle capable of reaching out to longer distances. It is also ideal for recreational long-range shooters who want a low-recoil and affordable platform for target practice. The AR-15 familiarity also makes it ideal for experienced AR users.
This product might not be the best choice for individuals seeking a self-defense weapon. While the .22 ARC can be effective for self-defense, larger calibers are generally preferred. Those who need a rifle immediately ready to shoot will also need to purchase magazines separately.
A must-have accessory for this rifle is a high-quality optic. A magnified scope will allow you to take full advantage of the .22 ARC cartridge’s long-range capabilities. Also, investing in reliable magazines is crucial to ensure consistent feeding and performance.
Conclusion on CMMG 28B3D0CSG ENDEAVOR MK4 22ARC 20 SNGRY
The CMMG 28B3D0CSG ENDEAVOR MK4 22ARC 20 SNGRY is an excellent rifle that delivers exceptional accuracy and long-range performance in a lightweight and easy-to-handle platform. The .22 ARC cartridge offers a flat trajectory and reduced wind drift compared to smaller calibers, making it ideal for varmint hunting and recreational long-range shooting. While the magazine issues and absence of a magazine are minor drawbacks, the overall performance and value of this rifle are undeniable.
The price of $879.99 is justified by the rifle’s performance, build quality, and compatibility with AR-15 accessories. It is a worthwhile investment for anyone looking for a high-quality long-range precision rifle.
I would personally recommend the CMMG 28B3D0CSG ENDEAVOR MK4 22ARC 20 SNGRY to anyone looking for a versatile and accurate long-range rifle. If you’re seeking a dependable and accurate AR platform chambered in .22 ARC, look no further. Go get yours and experience the long-range capabilities of this excellent rifle.