Description
KelTec has never been shy about tearing up the handgun rulebook, and the PR-5.7 might be its boldest experiment yet. Instead of a swap-out box magazine, this 5.7x28mm pistol loads through the top of the grip using stripper clips, a system borrowed from old military rifles and almost never seen on a modern handgun. The payoff for going this route is real: the PR-5.7 tips the scale at under 14 ounces unloaded and stays under an inch wide, all while packing 20 rounds plus one in the pipe.
How the PR-5.7 Loads Without a Magazine
Ditching a detachable magazine let KelTec build the frame around the ammunition instead of around a mag well, which is why the grip on this gun stays so thin. Two included 10-round stripper clips slide into the oversized ejection port and let you push a full row of ammo into the internal magazine in a couple of seconds, or you can thumb rounds in one at a time if you would rather take it slow. Underneath the slide sits a rotary barrel riding on dual guide rods, a design that trims weight and tames muzzle rise more than you would expect from a cartridge already known for being mild mannered.
Carrying the PR-5.7 Without the Bulk
At under an inch wide and well under a pound, the PR-5.7 disappears under a shirt in a way most 20-round pistols simply cannot match. The slide is cut with serrations and comes drilled and tapped with an RMSc-pattern optics plate already installed, so mounting a red dot is a straightforward job rather than a gunsmithing project. Up front sits a fiber optic front sight paired with a fixed rear, plus a short accessory rail for anyone who wants to add a light. Controls are kept to a bare minimum, just the trigger and a slide stop, which keeps the manual of arms simple on a defensive pistol.
Cleaning the PR-5.7
Field stripping might be the most unusual party trick this pistol has. There is no takedown pin or lever to hunt for, you simply hook a finger behind the trigger and push forward to release the slide from the frame. It is a quick process that gets you into the barrel and recoil assembly for cleaning without any extra tools, which fits the whole minimalist theme KelTec was clearly going for with this design.
Key Specifications
- Model: PR-5.7
- Manufacturer: KelTec
- Manufacturer Part Number: PR57BLK
- UPC: 640832010220
- Caliber: 5.7x28mm
- Capacity: 20+1
- Action: Striker Fired
- Barrel Length: 4.64 in
- Overall Length: 7.16 in
- Width: 0.937 in
- Height: 4.95 in
- Weight Unloaded: 13.86 oz
- Frame Material: Polymer
- Color/Finish: Black
- Sights: Fixed rear, fiber optic front
- Slide: Optic ready, serrated
What’s Included
- Kel-Tec PR-5.7 pistol
- Two 10-round stripper clips
- RMSc-pattern optics mounting plate
Frequently Asked Questions
Does the Kel-Tec PR-5.7 use a regular magazine?
No, that is the whole point of the design. Rounds load through the top of the grip into a fixed internal magazine, either one at a time or with the included stripper clips, so there is no separate magazine to buy or lose.
Can I mount a red dot on the PR-5.7?
Yes. It ships with an RMSc-pattern optics plate already installed on the slide, so most micro red dots built to that footprint will bolt right on without extra machining.
How do you unload the PR-5.7 since there is no magazine release?
Unloading means locking the slide back and racking it repeatedly until every round has cycled out of the internal magazine. It takes a little getting used to compared to a standard semi-auto, but it becomes second nature after a range trip or two.
Is the trigger pull heavy on this pistol?
The trigger has a longer pull than a typical striker gun, more like a double-action revolver, but it breaks at a consistent and fairly light weight, generally right around 4 to 4.5 pounds. Most people find it smooth and predictable once they have run a box or two through it.
What holster options work with the PR-5.7?
Because of its unique frame profile, this pistol needs a holster molded specifically for it rather than a generic fit. Companies like Rounded Gear now offer IWB and OWB Kydex holsters built for the PR-5.7, including cuts that work with an optic mounted.
How heavy is the PR-5.7 when fully loaded?
Even topped off with 20+1 rounds of 5.7x28mm, this pistol only weighs a little over a pound, which is a big part of what makes it such an easy gun to carry day after day.




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