Kel-Tec R50TAN R50 5.7x28mm 50+1 16.10" Threaded Barrel, Tan Receiver & Polymer Grip, Side-Folding Stock, Adjustable Sights, QD Sling Mount

The Kel-Tec R50TAN R50 in 5.7x28mm is a modern rifle platform engineered to deliver 50+1 round capacity in a compact, maneuverable profile. The R50 designation—standing for Rifle with 50-round magazine compatibility—represents Kel-Tec's approach to high-capacity centerfire carbine design. This model features a 16.10-inch threaded barrel chambered in 5.7x28mm, a bottleneck intermediate cartridge originally developed for specialized military applications. The tan receiver and polymer grip provide a durable, lightweight construction, while the side-folding stock collapses cleanly against either side of the receiver for storage and transport without sacrificing cheek weld geometry when deployed.

Operationally, the R50 carbine ships with adjustable iron sights for windage and elevation, allowing immediate target engagement from a zero. The upper receiver incorporates over 7 inches of Picatinny rail real estate, providing mounting surface for contemporary optics, laser designators, and tactical accessories without rail parasites. The threaded barrel accepts suppressors and muzzle devices, a critical feature for shooters managing signature control or sound reduction. A Quick-Detach sling mount facilitates rapid deployment of single-point or two-point sling systems. At 7.16 pounds unloaded, the platform balances controllability with manageable recoil impulse characteristic of the 5.7x28mm cartridge—notably milder than comparable 5.56 NATO rifles, a practical consideration for extended training sessions and precision shooting.

The R50TAN serves trainers, precision shooters, and operators requiring a high-capacity rifle platform with minimal footprint. The 5.7x28mm chambering supplies reduced penetration compared to standard rifle cartridges—relevant for shooters operating in environments where barrier performance matters. Magazine-fed, semi-automatic operation keeps the platform accessible to civilian and law enforcement shooters while delivering consistent, reliable function. The tan finish provides tactical visibility management in varied lighting conditions without the reflectivity of bare polymer or stainless steel.

The 5.7x28mm cartridge occupies a distinct niche in modern rifle ballistics—offering velocities exceeding 2,000 feet per second from the 16-inch barrel while generating a supersonic signature that remains relatively compact. Operators familiar with pistol-caliber carbines will recognize the R50's ergonomic advantages: lighter recoil, reduced muzzle rise, and the ability to train extensively without cumulative fatigue. The side-folding design differentiates this platform from traditional AR-pattern rifles, reducing overall profile for vehicle carry or confined-space operations.