Kel-Tec P50

• Name — KelTec P50 • Origin — United States • Type — Semi-automatic pistol • Manufacturer — KelTec • Design Date — 2021 • Weight — 3.2 lbs (1.43 kg) • Length — 15 in (380 mm) • Part Length — 9.6 in (244 mm) • Cartridge — 5.7×28mm • Unit Cost — $795 • Feed — 50-round FN P90 magazine • Is Ranged — yes • Width — 2 in (50 mm) • Height — 6.7 in (170 mm) • Action — Straight blowback

In December 2020, an image of a magazine cover showcasing the P50 was leaked on KTOG, an online forum dedicated to KelTec. The image advertised the pistol's ability to feed from 50 round 5.7×28mm magazines, and it is described as the "most unique KelTec yet". The image subsequently spread to the rest of the Internet, which coincided with a trademark of the name P50, registered by KelTec in February 2020. In January 2021, KelTec's official website revealed details about the P50, saying that the weapon was going to begin shipping in March 2021, with an MSRP of $995.

The P50 is a straight blowback semi-automatic pistol that feeds from FN P90 magazines. Like the P90, the rounds are rotated at a 90-degree angle from the magazine into the chamber. A Picatinny rail is located on the upper receiver, and a second rail is located below the magazine. The trigger pull is 5 lb (22N). The barrel and moving parts are made from steel, with a polymer frame and lower receiver to reduce weight. The P50 has an unusually long barrel for a handgun, helping to improve its muzzle velocity. At nine inches, it is over double the length of the barrel of the FN Five-seven, and only one inch less than the P90's barrel. KelTec has stated that they have no intention of creating any braces or other accessories for the P50, leaving the aftermarket to "do their thing". At 50 yards (45,72 m), the P50 has an average shot grouping of 1.5 in. The bolt is longer than that of an average handgun, which helps reduce recoil, making the P50 "significantly more accurate than 9mm machine pistols or their semiauto lookalikes". With a sling attached, the P50 can consistently make accurate shots from ranges up to 100 yard.

In 2023, KelTec designed a rifle variant named the R50, with an added stock and longer barrel, making for a total length of 30.5 in.

Regular R50 with the barrel length of a P50.

In 2026, KelTec introduced the KP-50, an evolution of the P-50, it features a bottom mounted magazine well, removing the hinged sistem of the P-50 and allowed the use of jungle clips. Featuring a milled steel receiver, the KP-50 comes in a standard, braced and stocked configuration.

The MP-50 is a select-fire variant of the KP-50, possessing a cyclic-rate of 850 rpm, intended for use by law-enforcement and military.