The KelTec KP50 delivers the 5.7x28mm cartridge in a polymer-frame, blowback-operated pistol. Designed for shooters who prioritize capacity and a low-recoil experience in a modern defensive caliber, it offers a 50-round magazine in a surprisingly compact package. Since arriving on our shelves in late 2025, customer feedback has been consistently positive, with a notably low return rate indicating it meets expectations.
Key Features
- High-Capacity Design: Ships with a single 50-round double-stack magazine, maximizing range time and defensive capability.
- Optimized for 5.7x28mm: Blowback operation is specifically tuned for this low-recoil, high-velocity cartridge.
- Ergonomic Polymer Frame: Provides a lightweight, comfortable grip with integrated Picatinny rail for accessories.
- Simple Field Stripping: Tool-free disassembly facilitates straightforward cleaning and maintenance.
- Ambidextrous Controls: Includes reversible magazine release for left- or right-handed shooters.
Specifications
| Caliber | 5.7x28mm |
| Action | Blowback-Operated, Semi-Auto |
| Barrel Length | 5.10″ |
| Overall Length | 8.60″ |
| Height | 5.70″ |
| Weight (measured) | 6.9 oz |
| Magazine Capacity | 50 Rounds |
| Frame Material | Polymer |
Frequently Asked Questions
Is the KP50 compatible with other 5.7x28mm magazines?
No. The KP50 uses a proprietary 50-round double-stack magazine designed specifically for this pistol’s frame and feed system.
How does the blowback action handle the 5.7x28mm cartridge?
The system is engineered for this specific round. It uses a fixed barrel and a heavy slide to manage the cartridge’s pressure curve, resulting in reliable function with minimal felt recoil.
Are there any known compatibility issues?
We’ve found the KP50 runs flawlessly with its OEM components. One return we processed was due to an aftermarket frame causing fitment issues; the pistol itself performed without fault on the original factory frame.
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