The Kel-Tec P50 is a 5.7x28mm semi-automatic pistol with a 9.6-inch threaded barrel, 50+1 round capacity, and bullpup-style layout where the magazine runs horizontally along the top of the receiver. At 15 inches overall and 3.2 lbs unloaded, it's a large pistol — closer to a short-barrel rifle in practical dimensions. 
 

Key Specifications 

• Manufacturer: Kel-Tec 
• Model: P50 
• Caliber: 5.7x28mm 
• Action: Semi-Automatic 
• Capacity: 50+1 rounds (includes 2 magazines) 
• Barrel Length: 9.6 inches 
• Overall Length: 15 inches 
• Weight: 3.2 lbs (unloaded) 
• Finish: Black Matte 
• Sights: Optic Ready Rail (no traditional sights included) 
   

Detailed Features 

The double-stack magazine holds 50 rounds horizontally across the top of the grip, which is the defining design choice of the P50. This layout keeps overall length manageable relative to magazine capacity, though it makes the gun taller and requires familiarization with the balance. 
 
The 9.6-inch barrel extracts more velocity from the 5.7x28mm cartridge than shorter-barreled alternatives. The barrel is threaded at 1/2-28 TPI for suppressor or muzzle device attachment. No traditional sights are included — the optic-ready rail expects an aftermarket red dot or similar optic. Picatinny-style rails and quick-disconnect mounts allow for lights and accessories. 
 

Usage Scenarios 

• Sport/Competitive Shooting: High capacity and low recoil 5.7x28mm suit extended range sessions and competition formats. 
• Home Defense: 50+1 round capacity with the lower recoil of 5.7x28mm is practical, though the gun's overall size requires consideration. 
• Tactical Training: Accessory rails and suppressor-ready barrel allow diverse training configurations.

The Kel-Tec P50 draws enthusiastic responses from shooters who value the 50-round horizontal magazine design and low-recoil 5.7x28mm caliber. The innovative layout and high capacity are genuinely popular — most buyers came specifically for these features and are not disappointed.

The bullpup configuration and overall ergonomics draw mixed feedback. Some find it comfortable once familiarized with the balance; others find the weight distribution takes adjustment. Accuracy is generally rated positively, with the 9.6-inch barrel providing good performance at range distances.

Amunition availability for 5.7x28mm gets mentioned as a limitation compared to 9mm. Terminal ballistics debates around the 5.7 cartridge come up regularly, with opinions divided on its defensive effectiveness versus conventional handgun calibers. Occasional feeding issues with specific ammo types are noted.

The P50 is generally treated as a range or specialty gun rather than a primary carry option. Its practical role — high-volume range use or home defense with the extended capacity advantage — is where most users find it appropriate. Price-to-feature ratio is considered reasonable for what it offers.