Kel-Tec Sub2k 5.7 20rd 5.7x28mm 20-Round Threaded Barrel Rifle

The Kel-Tec Sub2K 5.7 20rd 5.7x28mm rifle is a compact, semi-automatic platform engineered for shooters seeking a lightweight defensive or training system in an emerging intermediate caliber. Designed for law enforcement, military personnel, and civilian shooters who value portability without sacrificing capacity, the Sub2K 5.7 delivers the ballistic efficiency of the 5.7x28mm cartridge in a rifle format that weighs just 5.75 lbs fully assembled. This generation represents a purpose-built solution for those transitioning from handgun-caliber carbines to modern rifle systems or supplementing existing 5.7x28mm ammunition inventories.

The Sub2K 5.7 features a threaded barrel design that accommodates suppressors and muzzle devices, enabling sound reduction and recoil management without modifying the receiver. The 20-round magazine capacity provides substantial firepower in a compact frame, and the semi-automatic operation ensures reliability across duty cycles and training scenarios. Built with Kel-Tec's reputation for innovative, lightweight construction, this rifle combines the ergonomic handling of a pistol-caliber platform with rifle-class velocity and energy. The threaded barrel (compatible with standard 5.7x28mm suppressors) makes this platform ideal for both suppressed and unsuppressed configurations in training, home defense, or specialized applications.

Law enforcement trainers and military personnel benefit most from the Sub2K 5.7's lightweight profile and 20-round capacity during extended training cycles, while civilian shooters appreciate its portability for range work and home defense. The firearm integrates seamlessly with existing 5.7x28mm ammunition supplies and is compatible with standard tactical accessories via picatinny rails and threaded muzzle attachments. Proper eye protection and hearing protection are essential; suppressor use is recommended for extended training to reduce noise signature and operator fatigue. This rifle-platform offering fills a critical niche for shooters seeking modern ergonomics, reliability, and the documented advantages of 5.7x28mm ballistics in a genuinely portable package.