The KelTec PR57 is a bold leap from the modern concealed carry pistols we’re used to, but KelTec is known for its unconventional designs. The company's firearms all look like they’d be equally at home in a WWII firefight scene or a sci-fi space opera. 

The KelTec story is one of innovation, simplicity, and a touch of retro with some futuristic flair. Introduced in January 2025 at SHOT Show, this 5.7x28mm semi-automatic pistol from KelTec flips the script on what a modern handgun can be. With a rotary barrel, a top-loading internal non-magazine, and a stripped-down approach to controls, the PR57 is as much a conversation starter as it is a practical tool for self-defense. Let’s dive into its origin, design, performance, and what makes it stand out in a crowded market.

Thinking Different

KelTec, founded by George Kellgren in 1991, has built a reputation for pushing boundaries. From the P11, which redefined concealed carry in the mid-90s, the much copied P3AT with a version now offered in .32, to the quirky P50 with its 50-round magazines, and the folding Sub-2000 now offered in 5.7x28, the company thrives on challenging norms. Really, there is nothing in the entire KelTec line that follows anyone’s design footsteps. The PR57 is uniquely engineered and also the first gun to be manufactured at KelTec’s new 33,000-square-foot facility in Rock Springs, Wyoming. 

Interestingly, Kellgren previously designed the Grendel P10 — a .380 ACP pistol with a stripper clip-fed internal magazine-less design in the late 1980s. He clearly drew inspiration from his own past creating the PR57. The result is a pistol that blends old-school ideas like stripper clips with modern materials and concealed carry demands. 

The PR57’s development was driven by a clear philosophy: simplicity and reliability in high-stress situations while delivering the potential for legal compliance in some magazine restricted states. This led to a design that prioritizes shootability, lightweight construction, and a high-capacity format that doesn’t rely on detachable magazines. The very capable 5.7x28mm cartridge with low recoil and a dense round count further aligns with the design goals.

Design and Features

At the heart of the PR57 is its rotary barrel system, a rare mechanism in modern pistols. The design reduces recoil, weight and complexity when combined with a polymer frame while providing potentially better lockup. The pistol is a featherweight at just 13.86 ounces unloaded — nearly 40% lighter than competitors like the FN Five-seveN or Ruger-57. Measuring 7.16 inches long, 4.95 inches high, and a mere 0.937 inches wide, the PR57 is slimmer and more compact than a Glock 19, despite packing 20 rounds of 5.7x28mm.

The most head-turning feature is its magazine-less, top-loading design. Instead of a detachable box magazine, the PR57 stores 20 rounds directly in the grip, loaded either manually or via two included 10-round stripper clips. This setup, reminiscent of historical firearms like the C96 Mauser or M1 Garand, shrinks the grip size and eliminates magazine-related failure points, such as damaged feed lips. 

The PR57 is shorter than the height of both the FN and Ruger 20-round magazines, which delivers a thinner and 1/2-inch shorter gun with the same capacity. Reloading isn’t as fast as swapping magazines, but the 20-round capacity is more than enough for all but the most unusual defensive scenarios. There is a learning curve with the 10-round stripper clips but it can be fairly quick if a reload is required. For states with restrictions with specific magazine limitations, the magazine-less design might also offer a legal workaround for magazine capacity limitations. 

Simplicity extends to the PR57’s controls — or lack thereof. The simplicity removes a magazine release which can cause inadvertent drops or loose magazines. One less thing to worry about in a defensive handgun. It features only a slide lock and a double-action-only trigger, reducing the learning curve for new shooters. The disassembly process is equally straightforward: Push the trigger forward, and the slide comes off. With care the slide can even be removed safely with the chamber empty and the grip loaded to full capacity. The pistol is optics-ready, shipping with a mounting plate for RMSC-pattern red-dots. The fixed sights are a bit rudimentary, but they work and deliver point of aim accuracy out to 50-yards.  

The PR57’s rounded slide design evokes vintage aesthetics while keeping weight down and improving concealment and snag-free draw. 

Performance

Despite appearances and the extremely attractive $399.99 MSRP, KelTec’s firearms are built to very high tolerances. These tolerances historically have required some break-in to be fully reliable — sometimes a few rounds, sometimes a few hundred. Aside from two feeding issues induced from improperly loaded rounds on the initial loading, I had perfect function across over 400 rounds of FN, Federal, Hornady, American Eagle and Speer ammunition without cleaning or lubrication. The break-in was visible on the gun’s barrel and the underside of the slide, and with that many rounds reliably shot right out of the box, that’s reliable enough to confidently carry. 

The PR57 did get notably smoother after the first magazine, but it fed everything from the first round if rounds were consistently and properly loaded. The initial failures to feed coincided at the reloading point transition of stripper clip #1 (1-10 rounds) and #2 (11-20 rounds). On the second full grip reload using the stripper clips, I noted that the tenth round was a bit bobbled during the stripper clip reload. Since I had no further issues after correcting my reloading technique, I feel very confident that the initial two feeding issues were my failure, not the gun. Notably, people either love or hate the stripper clips. I found hand reloading to be faster versus playing around with loading the stripper and then potentially bobbling the reload with the stripper.

Technically, the PR57 can be loaded to 20+1 rounds and fire reliably, but it takes some finagling. The first 20 rounds are loaded then another in the breech, then you need to push down the 20 rounds with one finger while releasing the slide all without picking up another round or smashing your finger. The two-pronged ammo-loaded indicator allows tactile indication that the gun is fully loaded. These prongs protrude about 1/8 inch from the bottom of the grip with a standard 19+1 rounds loaded but protrude a full ¼ inch with 20+1 loaded — not the most ergonomic thing for concealed carry. 

The PR57 is a double-action trigger pull that is relatively light but with a long ¾-inch revolver-style trigger pull. The MFT Minimalist Glock 42 holster and MFT belly band was used for concealed carry. Of note, this is not a quiet gun. The 5.7x28 round in a short barrel is thunderous. Accuracy testing was at 15 yards which delivered consistent ½- to 1-inch 10-shot groups. Ammunition tested included:

• FN Herstal – 40-grain Hornady V-MAX; polymer-tipped bullet for sporting and target shooting.
• American Eagle – 40-grain total metal jacket (TMJ); economical choice for target practice.
• Hornady Critical Defense – 40-grain FTX; polymer-tipped bullet optimized for personal defense.
• Hornady BLACK – 40-grain V-MAX; designed for versatility across various firearms.
• Speer Gold Dot – 40-grain bonded jacketed hollow point; engineered for self-defense with reliable expansion.

Bigger Picture

The PR57’s 4.64-inch barrel and low bore axis, courtesy of the rotary system, make it a flat-shooting, low-recoil pistol. KelTec fans will likely line up to buy one, but I also expect this to become very popular for anyone wanting a small and very light format with a lot of capacity and the low recoil and defensive capabilities of the 5.7x28mm cartridge. Personally, this could not be a better briefcase or off-body carry gun, with a lot of rounds packed into a light, slim and small form factor. 

With a street price of $399, the PR57 is the most affordable 5.7x28mm pistol on the market, undercutting rivals by hundreds of dollars. It’s marketed as an “everyman’s carry pistol,” ideal for first-time buyers, seniors with dexterity issues (thanks to its easy-to-rack slide), and anyone seeking a lightweight, high-capacity option for concealed carry. Its minimalist design and simplicity has a lot of appeal once in hand, and its quirky charm will appeal to collectors and KelTec fans who appreciate oddballs like the PMR-30 or KSG shotgun.

The Verdict

Many people will not understand the KelTec PR57 until they pick it up. Once the size, weight, capacity and price sink in, it should be an easy sale for dealers. Its rotary barrel, top-loading system, and featherlight construction make it the slimmest, lightest 5.7x28mm pistol available, redefining what a concealed carry gun can be. 

One thing’s certain: The PR57 is unlike anything else on the market, and that’s exactly what KelTec intended.