Description
The KelTec KP50 is a 5.7x28mm pistol built for shooters who want a high-capacity, low-recoil platform for range use or personal defense. Its unique 50-round capacity and the flat-shooting 5.7x28mm cartridge make it a standout. Since adding it to our catalog in summer 2025, it’s been a consistent top-seller, and we now keep 20+ in stock at all times to meet demand.
Why This One?
- Unmatched 50-Round Capacity: The dual 25-round magazines feed into a single magazine well, providing a massive on-board round count without the bulk of an extended magazine.
- Low-Recoil 5.7x28mm Platform: The cartridge offers minimal muzzle rise and excellent controllability for fast, accurate follow-up shots.
- Unique KelTec Engineering: Features a simple blowback action and a polymer frame, resulting in a lightweight and reliable design typical of the brand.
- Optics-Ready & Accessory Rail: Comes optics-ready for mounting a micro red dot and includes an integrated accessory rail for lights or lasers.
- Proven Demand: Our experience shows this model sells out fast; maintaining high stock levels is a necessity due to frequent backorders elsewhere.
Full Spec Sheet
| Caliber | 5.7x28mm |
| Barrel Length | 5.2″ |
| Overall Length | 9.6″ |
| Height | 6.3″ |
| Weight (measured) | 3.9 oz |
| Capacity | 50 Rounds (Dual 25-rd mags) |
| Action | Blowback |
| Sights | Optics Ready, Fixed Front & Rear |
Q & A
How does the dual-magazine system work?
The KP50 uses two standard 25-round 5.7x28mm magazines that lock side-by-side into a single magazine well. They feed alternately into the chamber. This provides the high capacity of a drum magazine in a more streamlined and reliable package.
Is the KP50 reliable with different 5.7x28mm ammunition?
Yes. In our handling and from consistent customer feedback, the simple blowback action has proven reliable with a wide range of factory 5.7x28mm loads, from FN-branded rounds to more affordable options from other manufacturers.
What optics footprint does it use?
The KP50 slide is milled to accept the popular Shield RMSc footprint. This includes optics like the Shield RMSc, Sig Sauer RomeoZero, and Holosun HS407K/HS507K, allowing for a direct mount without an adapter plate.
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