Resolute MK4 5.56 CT 55A9DOB-CT | Premium 5.56 NATO Tactical Carbine Rifle
The Resolute MK4 5.56 CT 55A9DOB-CT is a high-performance tactical rifle chambered in 5.56 NATO, built for professionals, competitive shooters, and serious enthusiasts who demand reliability, accuracy, and modern features. As part of Resolute’s respected MK4 series, this carbine-length model combines a robust direct impingement gas system with a lightweight yet durable design. The “CT” designation signifies its compact tactical configuration, making it an excellent choice for home defense, tactical training, and dynamic shooting sports. With its precision engineering and quality components, the Resolute MK4 5.56 CT delivers consistent performance in demanding environments.
Optimized 5.56 NATO Performance
Chambered in the versatile and widely available 5.56 NATO cartridge, the Resolute MK4 5.56 CT offers excellent ballistic performance with low recoil and high magazine capacity. This caliber provides a flat trajectory and effective terminal performance at typical engagement distances, making it ideal for both defensive and recreational use. The rifle is compatible with standard AR-15 magazines, giving users access to a vast selection of reliable feeding options in various capacities.
Modern Tactical Features
The Resolute MK4 5.56 CT is equipped with a modern free-float M-LOK handguard that provides ample mounting space for optics, lights, lasers, and vertical grips. The carbine-length barrel is paired with a mid-length or carbine gas system (depending on exact configuration) to ensure smooth cycling and reduced recoil. The rifle features a crisp trigger, ambidextrous controls on select models, and a durable finish that resists wear and corrosion. These features combine to create a rifle that is both highly functional and comfortable to operate during extended training sessions.
Key Features of the Resolute MK4 5.56 CT 55A9DOB-CT
- Caliber: 5.56 NATO
- Configuration: Carbine Tactical (CT)
- Handguard: Full-length M-LOK free-float
- Barrel: Precision 5.56 NATO barrel
- Model Number: 55A9DOB-CT
- Action: Semi-automatic, direct impingement
- Stock: Adjustable tactical stock
- Finish: Durable protective coating
Technical Specifications
| Specification | Details |
|---|
| Brand | Resolute |
| Model | MK4 5.56 CT |
| Model Number | 55A9DOB-CT |
| Caliber | 5.56 NATO |
| Barrel Length | Carbine Length |
| Handguard | M-LOK Free Float |
| Gas System | Carbine or Mid-Length |
| Action | Semi-Automatic |
| Stock | Adjustable Tactical Stock |
| Magazine Compatibility | Standard AR-15 Magazines |
Ideal Uses for the Resolute MK4 5.56 CT
This tactical carbine is well-suited for a variety of applications:
- Home defense and personal protection
- Tactical training and professional use
- 3-Gun and competitive shooting
- Recreational range shooting
- Vehicle and truck gun applications
- Suppressor-ready builds
- Custom rifle builds and upgrades
Why Choose the Resolute MK4 5.56 CT 55A9DOB-CT?
The Resolute MK4 5.56 CT represents a strong balance of performance, features, and value in the modern tactical rifle market. Resolute has earned recognition for producing well-built firearms that emphasize reliability and shooter-focused design. The MK4 platform is known for its robust construction and attention to detail, and the 5.56 CT model continues this tradition with its carbine configuration and modern accessory compatibility. The 15-inch or longer M-LOK handguard provides excellent ergonomics and mounting options, while the overall lightweight design makes the rifle easy to maneuver in dynamic situations. Whether you are a law enforcement professional, competitive shooter, or civilian enthusiast, the Resolute MK4 5.56 CT offers the accuracy, reliability, and customization potential needed for serious use. Its compatibility with the vast AR-15 aftermarket further enhances its long-term value, allowing owners to tailor the rifle to their specific needs over time.
Precision Engineering and Reliability
Every Resolute MK4 is built with quality components and undergoes strict quality control. The direct impingement system is tuned for reliable function across a wide range of ammunition types and environmental conditions. This level of engineering ensures consistent performance whether the rifle is used for high-volume training or critical defensive situations.
Excellent Platform for Customization
The MK4 5.56 CT serves as an outstanding foundation for customization. The M-LOK handguard, standard AR-15 controls, and modular design allow users to easily upgrade optics, triggers, stocks, and muzzle devices to create a truly personalized firearm.
Experience premium tactical performance with the Resolute MK4 5.56 CT 55A9DOB-CT. This well-equipped 5.56 NATO carbine delivers reliability, accuracy, and modern features for serious shooters. Model 55A9DOB-CT.
