A decade ago, at the SHOT Show, I visited the booth of a thermal manufacturer whose units I’d reviewed. They showed me their newest unit, a small thermal monocular, very handy and useful for a dedicated night hunter like me, which I would go on to review.

As the marketing director and I were talking, one of the company’s product engineers joined us. He went over the monocular’s specs and various features. Then, the marketing director asked if there was something not currently available that a night hunter like me might like to see.

I held up my hand to replicate a pistol and laid the small monocular along the top of my index finger.

“Can you make a thermal for a handgun?” I asked them. “One that can mount on top of a pistol or revolver and spot a hog out to 50 yards? It would need to be a lot shorter than this and have a reticle.”

The engineer shook his head, explained the technological problems he believed made such a thermal pretty impossible to build. The big hurdle, he said, was the substantial eye relief needed for use on a handgun.

“That’s too bad,” I said. “Because if you could make such a thermal, I think you’d sell a lot of them.”

Fast forward to late 2025 and a social media post I spotted for just such a thermal, the Fast Mini FMP13 from InfiTac USA, which the company termed “the world's first dedicated thermal pistol sight platform.”

They had my full attention.

A few months later, I scored an FMP13 for testing. I ran the unit several times on a pistol during the day, plus used it at night to judge its nighttime image and range capabilities.

The short take? The FMP13 is a cool little thermal and can definitely work in the field for the night hunter who likes to get close to their prey. I think it has rimfire rifle applications, too.

It’s a unit limited by its size, power and range, yet also offers a surprising number of “big” thermal features especially for a unit that has a suggested retail of just $799.

Getting Familiar

At just 2 inches long and 1.5 inches high, the FMP 13 looks like a closed emitter red-dot. But inside that 7075-T6 aircraft-grade aluminum housing is a 256×192 thermal sensor. InfiTac rates the unit at a 740-yard detection range and a 110-yard recognition or identification range. For medium-size animals like deer, I found that ID range to be correct, and the unit certainly spotted heat signatures at hundreds of yards in the distance.

The rear screen is 1.0 inches wide by .86 inches high. The 13mm objective is made of Germanium. My test unit sported a black finish, and an FDE model is also available.

For my eyes, eye relief was between approximately 4 inches out to a foot or more. At “more,” though, the reticle got smaller and more difficult to use effectively — again, for my eyes.

The FMP 13’s multi-reticle system let me choose between a 6-MOA dot and 6-MOA dot surrounded by a 65-MOA circle. I used the latter in my shooting. Palette choices were White Hot, Black Hot, Red Hot, and Rainbow. The unit also featured Auto Brightness to adjust to shooting conditions.

The controls consisted of just two rubberized buttons on the left front of the housing. Touchscreen adjustments can be made, too.

A single CR2 battery powers the FMP13, which InfiTac rates at up to 5 hours of runtime. The battery loads into a compartment at the left rear of the housing. The thermal can also run via an external power pack connected to the USB-C port on the right side of the housing. 

The included mounting hardware fits the standard RMR footprint. InfiTac also offers, at additional costs, hardware to fit RMSc, DPP, and MOS optic footprints, and rifle mounts (Picatinny rail, 30mm ring, 45-degree offset, Aimpoint Acro). The pic rail would be perfect for a .22LR rifle.

Hunting Applications

While the FMP13 certainly has non-hunting uses, it seemed to me hunting and varmint eradication would top the list of applications. So, thinking of hunting firearms to use in testing the unit, I saw that the owner’s manual listed the maximum recoil the unit can withstand as “1,200 g/s².” 

I did the mandatory internet and AI check but couldn’t get a caliber reference to compare.

So, I emailed Eson Lu, InfiTac USA’s marketing manager. With handgun hunting in mind, I asked him if the FMP13 could withstand recoil from a .357 Mag. and a .44 Mag. handgun. His response:

“Regarding the Max Recoil specification shown in the FMP13 owner's manual: In practical terms, the FMP13 can be used on both .44 Magnum and .357 Magnum handguns from a recoil tolerance standpoint.

That said, while short-term or occasional use is acceptable, we do not recommend long-term or sustained use on high-recoil handguns such as .44 Mag or .357 Mag platforms. Prolonged exposure to sharp recoil impulses may reduce the long-term durability of the device over time.

For best performance and longevity, the FMP13 is ideally suited for platforms with more moderate recoil profiles.”

Which put me into a quandary of sorts. When I think of handgun hunting, I think .357 Mag., 10mm AUTO and .44 Mag.  I certainly didn’t want to break my FMP13 test unit, but a “more moderate recoil” like that from the popular 9mm isn’t really a hunting round. 

One could of course use the FMP13 on a .22LR or .22 WMR handgun for thinning out the local varmint populations, and the unit would likewise work on rifles chambered for those rimfire rounds. 

But for medium-size game like hogs using a pistol? I went with my FK BRNO PSD chambered in the proprietary 7.5 FK round.

Test Gun

Essentially a .30 caliber pistol, the PSD launches a 95- to 101-grain bullet at approximately 2,000 feet per second. I don’t have a recoil testing machine, but in hand PSD recoil feels considerably less than .357 Mag. recoil. 

Manufactured by FK BRNO in the Czech Republic city of Brno, the PSD (Police, Sport and Defense) is a single action, tilting barrel platform featuring a patented recoil reducing system developed specifically to handle the 7.5 FK cartridge.

The semi-automatic PSD sports a poly frame and steel slide, plus a 5.3-inch steel barrel. It weighs 38.8 ounces unloaded. 

The PSD sells with a 9mm and 10mm barrel, too, easily changed out, plus the correct magazines for those calibers. In 7.5 FK, PSD ammunition feeds via a 16-round magazine. The pistol is imported into the USA by the Italian Firearms Group (italianfirearmsgroup.com) of Amarillo, Texas.

Finding Zero

I mounted the FMP13 onto my PSD and headed to my outdoor shooting range.

My first target was a HotHands Super Warmer pack taped to cardboard backing. I used FK BRNO 7.5 FK Dynamic Shock Effect Dangerous Game/Tactical round loaded with a 101-grain flat-nosed copper bullet. Firing from a rest at 12 yards, my initial shots hit left and low. 

I entered the FMP13’s zeroing application, and used the buttons to move the X and Y Axis to correspond with where the shots had hit; I used the touch screen to move between X and Y. When the X axis was adjusted, for example, a tiny red dot appeared on the reticle to show me where I was moving the point of impact. Same with the Y Axis. 

A simple but brilliant way to zero.

Once zeroed, I set up a new, smaller heat-pack target and fired 20 rounds, hitting the pack itself 18 times. Given the flurries obstructing my view and my newness with the FMP13, I was happy with that shooting. 

I moved onto the range’s 25-yard lanes and set up a Super Warmer target. After making sure the zero held at this new distance – it did — I fired five rounds for accuracy testing. I was all over the target.  

I loaded up five more rounds and took my time. This group came in at 3.3 inches. Not super terrible. Yet I knew the PSD was capable of greater accuracy and I suspected the FMP13 could do much better, too.

Shooter problem, I decided.

I set up a new target and switched to FK’s Target and Tactical load. To check zero on this new ammo, I fired three rounds at the cardboard below the HotHands’ right lower corner. All three pegged in very close, later measuring out at just under 1 inch.

I then shot several five-shot groups, all of which came in at under 3 inches. The best group was 2.25 inches with a flyer to the high right.

At this distance, the night hog hunter should have pork chops on the ground!

Core Customers

Once your establishment has the FMP13 on hand, Eson Lu suggested making the unit visible to potential customers in a comparison with more traditional optics.

“We recommend displaying the FMP13 alongside conventional pistol red-dot optics,” Lu said. “This makes it easier for customers to immediately understand its size, mounting position, and how it integrates into familiar handgun setups.”

Of course, sales staff must be ready to turn on the FMP13 and show customers how the unit works, from the buttons to the touchscreen. Which requires hands-on time with the FMP13 beforehand. 

In addition to the hunting market, Lu said, “The core customer base for this thermal includes users focused on home defense, CQB scenarios, and tactical or professional training, where fast target acquisition and thermal advantage are critical.”

This being the case, consider mounting the thermal on the hottest new self- and home-defense handguns. Customers asking to see these handguns will receive an InfiTac introduction, too.

And for the tactical crowd, the FMP13 can also be used as a 45-degree-offset secondary optic.

Sales Help

In store, InfiTac USA provides its dealers with product one-sheets, promotional videos, plus posters and visual assets.

“Depending on the depth of the partnership, we can also support with display stands, roll-up banners, and other point-of-sale materials” Lu noted. 

InfiTac offers sales staff training which includes online options. 

“For deeper partnerships, sales incentive programs are also available,” Lu said. “Co-op advertising support can be discussed on a case-by-case basis.”

Independent FFLs can purchase directly from InfiTac or use the company’s current distribution partners, Iron Valley and 2nd Amendment, among others.

Becoming a dealer starts with filling out the dealer application on the InfiTac website at infitacusa.com.

Once the application is submitted, a dedicated InfiTac sales representative will follow up.

Spreading the Word

Many YouTube and Instagram reviewers have evaluated the FMP13; InfiTac USA products have been featured in platforms which include GunsAmerica Digest and Hook & Barrel. 

InfiTac will continue expanding media coverage, including additional product reviews, new product launches, and key brand initiatives.

Last, the company recently introduced the FMP13’s “big brother,” the FML19, a similar-sized thermal unit but built with a 384x288 sensor and a $400 upcharge. It looks like InfiTac USA is here to stay.