The Kel-Tec P50 is a semi-automatic pistol chambered in 5.7x28mm with a 9.6-inch threaded barrel at 1/2X28 thread pitch. It accepts 50-round magazines, has ambidextrous controls, and ships with a Strike Industries brace. Two 50-round magazines are included. 
 

Key Specifications 

• Brand: Kel-Tec 
• Model: P50 
• Caliber: 5.7x28mm 
• Action: Semi Auto 
• Capacity: 50+1 
• Barrel Length: 9.6in 
• Color/Finish: Black 
   

Detailed Features 

• 9.6-inch threaded barrel with 1/2X28 thread pitch 
• 50-round magazine capacity 
• Strike Industries brace included 
• Ambidextrous controls 
• Blued finish

P50 owners consistently highlight the 50-round magazine as the platform's defining feature. Running the 5.7x28mm cartridge through the 9.6-inch threaded barrel keeps felt recoil very light, and the ambidextrous controls make it accessible for left- or right-handed shooters. The Strike Industries brace adds shoulder support for extended sessions.

Ergonomics are unconventional. The top-mounted magazine and overall layout take some adjustment to handle confidently. Shooters who put in range time come around to the balance; those expecting a conventional pistol feel find it awkward initially.

Cost and availability of 5.7x28mm ammunition is the most common owner complaint. The platform depends on the cartridge to perform and supply constraints can make practice expensive. Aftermarket support is growing but still limited compared to more established platforms.