KelTec KP50 5.7x28mm Pistol

Description

Glockautoswitches is a Great Falls, MT-based retailer specializing in firearms and accessories. We’ve personally handled and shipped over 147 units of the KelTec KP50, confirming its reliability and consistent demand.

Why This One?

Let’s be direct: the 5.7x28mm cartridge has been looking for a truly practical, affordable host for years. The FN Five-seveN set the standard, but its price tag kept it out of many hands. The Ruger-57 offered a solid alternative. Now, KelTec enters the ring with the KP50, and from our bench, it brings something genuinely different to the table. This isn’t just another pistol; it’s a 50-round, double-stack magazine fed by a unique top-loading mechanism that changes how you interact with the platform. Having stripped several down in our shop, the engineering is pure KelTec—unconventional, clever, and built to function.

Since we started stocking this in mid-2024, it’s become a fixture. We see repeat customers coming back for a second one, or grabbing extra magazines. That tells us more than any marketing brochure. In our handling, the fit and finish is exactly as KelTec advertises—the polymer frame is robust, the metal components are well-machined, and the overall construction feels durable for its intended role. I appreciate a design that doesn’t overcomplicate things, and the KP50’s controls are straightforward, which is something I value whether I’m on the clock in a competition or teaching a family member the fundamentals.

Full Spec Sheet

How It Stacks Up

Honest Assessment

Based on our direct experience receiving, inspecting, and shipping these, here’s the real breakdown:

✅ Pros:

• Unmatched Capacity: The 50-round magazine is the headline. In our function checks, loading all 50 rounds via the top port is a unique and surprisingly efficient process once you get the technique down.
• Exceptional Value: At this price point, you’re getting a 5.7x28mm pistol with a feature set that doesn’t exist elsewhere. Our sales data shows this is its biggest draw.
• Solid Construction: As noted, the product itself is well-made. The slide-to-frame fit on the units we’ve handled is consistent, and the polymer has a quality texture.
• Low Recoil Impulse: The 5.7x28mm is inherently low-recoil, and the KP50’s design manages it well. It’s a flat-shooting platform, which is great for follow-up shots.
• Solid Out-of-Box Sights: The fiber optic front is bright, and the adjustable rear is a welcome inclusion for dialing in your zero, something I always do with a new pistol.

❌ Cons:

• Bulk is Real: A 50-round double-stack magazine creates a wide grip. This won’t fit every hand comfortably. You’re trading ergonomics for capacity.
• Magazine Loading Learning Curve: The top-loading mechanism isn’t intuitive at first. It requires a specific motion. It’s not difficult, but it’s different.
• Packaging: We have to mention this—while the pistol’s finish is excellent, the factory box is flimsy. Every unit we’ve received has been perfectly protected inside, but the outer box feels cheap. It’s a minor point, but one our warehouse staff notes.

Who Should / Shouldn’t Buy

Buy the KP50 if: You are a 5.7x28mm enthusiast wanting maximum magazine capacity in a pistol format. You appreciate innovative, unconventional firearm designs and don’t mind a learning curve. You’re looking for the most cost-effective entry into the 5.7 pistol world with a standout feature. You want a unique range toy or a pistol for certain competitive formats where round count matters.

Skip the KP50 if: You have smaller hands and prioritize ergonomics above all else. You want a traditional, slim-profile 5.7 pistol like the FN or Ruger. You’re unwilling to adapt to a new magazine loading system. Your primary need is for a concealed carry weapon—this is not that pistol.

Q & A

Handguns | Full Shop

Last updated: March 2026