KEL-TEC KP50BLK KP50 5.7X28MM 50+1 BLACK

The Kel-Tec KP50 (KP50BLK) is a boldly engineered, semi-automatic large-format pistol chambered in 5.7x28mm, offering an exceptional 50-round onboard capacity in a compact, lightweight platform designed for enthusiasts, collectors, and shooters who demand maximum firepower without the bulk of a full-size rifle.

Key Features

• Part number: KP50BLK
• Caliber: 5.7x28mm
• Action: semi-automatic
• Barrel: 9.6 inch threaded barrel, 1/2x28 TPI, with A2-style flash hider installed
• Barrel twist: 1:7 inches
• Capacity: 50 plus 1 rounds
• Magazine: one 50-round bottom-insert, drop-free magazine included
• Receiver: fully machined lower receiver
• Fire control group: Kel-Tec SU16 trigger group
• Grip: B5 Systems pistol grip, removable and AR-type grip compatible
• Safety: ambidextrous manual safety
• Charging handle: non-reciprocating
• Rear accessory mount: Picatinny-style rail adapter
• Overall length unfolded: 28.3 inches
• Overall length folded: 18.6 inches
• Weight unloaded: 4 pounds
• Weight loaded with one 50-round magazine: 5.1 pounds
• Finish: black
• Optional configuration: Jungle Clip dual-magazine system for 100-round total capacity

Special Features

• The KP50BLK features a completely redesigned bottom-insert, drop-free magazine system that replaces the original P50 top-hinged loading configuration, enabling faster, more natural reloads that mirror conventional pistol and carbine muscle memory
• The fully machined lower receiver uses the proven Kel-Tec SU16 fire control group, providing a consistent, reliable trigger interface built on a platform with a long track record in the field
• The threaded 9.6 inch barrel with 1/2x28 TPI muzzle threading is optimized for the 5.7x28mm cartridge and accepts a wide range of suppressors and muzzle devices without additional adapters
• The rear Picatinny-style rail adapter supports side-folding pistol brace or stock configurations, giving shooters the ability to add stabilization options and tailor the platform to their intended use
• The B5 Systems grip is a proven, widely trusted interface known for its ergonomic design and durability, and the AR-compatible grip socket means shooters can swap to any standard AR pistol grip they prefer
• The optional Jungle Clip configuration links two 50-round magazines together for 100 rounds of total onboard capacity, a feature unique to this platform in the civilian market
• The non-reciprocating charging handle keeps manipulation simple and predictable without requiring the shooter to clear the path of a moving bolt carrier

Practical Benefits

• The Kel-Tec KP50 (KP50BLK) in 5.7x28mm is built for high-capacity enthusiasts, range shooters, and collectors who want a compact, lightweight platform that holds more ammunition than nearly any other pistol-format firearm on the market
• The 5.7x28mm cartridge is a high-velocity, low-mass round known for its flat trajectory, minimal wind drift, and manageable energy on target, making the KP50BLK an effective choice for home defense, range use, and small to medium game in jurisdictions where it is appropriate
• At just 4 pounds unloaded, the KP50BLK is significantly lighter than comparable high-capacity platforms, making it practical for extended range sessions and comfortable to carry in a sling configuration
• The bottom-insert magazine system makes reloads intuitive for anyone familiar with standard pistols or carbines, reducing training time and improving performance under pressure
• The threaded barrel and Picatinny rear rail make this pistol one of the most accessory-ready platforms in its class, supporting suppressor use, lights, lasers, and brace or stock additions with minimal additional cost or gunsmithing
• The folding configuration reduces overall length to 18.6 inches, making storage, transport, and vehicle carry far more practical than the platform's full operating length suggests
• The 50-round standard capacity and optional 100-round Jungle Clip make the KP50BLK a standout choice for competition shooters running high-round-count stages and for range enthusiasts who prefer fewer magazine changes during long shooting sessions

The Kel-Tec KP50 (KP50BLK) in 5.7x28mm is a capable tool for high-capacity enthusiasts, range shooters, and serious collectors who want an innovative, lightweight, and fully accessory-ready platform with unmatched onboard ammunition capacity in its class.