Kel-Tec R50 5.7x28mm 16.1" 51-Round Threaded Barrel Carbine

The Kel-Tec R50 5.7x28mm 16.1" Threaded Barrel Carbine represents a modern platform purpose-built for high-capacity tactical applications and duty use. This lightweight rifle delivers the ballistic efficiency and ammunition economy of the 5.7x28mm cartridge in a rifle-length configuration, making it ideal for operators, competitive shooters, and those seeking a specialized defensive platform. At 6.2 pounds, the R50 provides manageable recoil impulse and minimal muzzle rise, enabling accurate rapid fire and extended training sessions without fatigue.

The carbine features a 51-round magazine capacity that maximizes engagement duration without frequent reloads—a critical advantage in sustained-fire scenarios. Its 16.1-inch barrel optimizes velocity and accuracy for the 5.7x28mm round while maintaining a compact overall length of 29.7 inches, suitable for vehicle transport and confined-space operations. The threaded barrel accommodates sound suppressors and muzzle devices, allowing users to customize for noise reduction or enhanced control. Kel-Tec's proven engineering delivers reliability through a direct-impingement design that minimizes maintenance and ensures consistent performance in variable conditions.

Law enforcement, military personnel, and civilian tactical shooters benefit most from the R50's high magazine capacity and ergonomic handling characteristics. The 5.7x28mm chambering offers reduced over-penetration concerns compared to traditional rifle rounds, making it suitable for close-quarters defense and training environments. Compatibility with 5.7x28mm ammunition—widely available and cost-effective—makes this platform practical for duty rotation and high-round-count practice. The threaded barrel readily accepts industry-standard suppressors and compensators, allowing field customization to suit specific operational requirements or shooting disciplines.