FN kicked off 2023 with a 10mm-chambered Tactical variant of its popular 509 series pistols. We have one on hand for a better look.
Guns.com was on hand in 2017 when the company introduced the new FN 509 pistol, the product of more than 1 million rounds of testing and an offshoot of the gunmaker's submission to the Army's Modular Handgun System competition. Based on its much-liked FNS Compact platform, that 9mm 17+1 capacity handgun was significantly beefed up to meet rigorous military requirements. A year later came the announcement of the FN 509 Tactical, which was both suppressor and optics-ready with suppressor-height iron sights that co-witness with several MRDs on the market and was augmented with an extended 24-round magazine.
Now, FN 509 Tactical has essentially grown to a full centimeter, so to speak, and has hit the market in the form of the 10mm FN 510, with all the same features but in the more commanding caliber.

The FN 510 Tactical
The FN 510 Tactical has a 4.71-inch barrel, which gives the pistol an 8.3-inch overall length, making it very M1911-sized. (All photos: Chris Eger/Guns.com)
The FN 510 Tactical
Weight, due to its polymer frame, is 32 ounces unloaded. Fully loaded with the big mag (we'll get into that in a minute) is 46 ounces, sans optics or a muzzle accessory. 
The FN 510 Tactical compared to the SIG XTen
Its closest competitor on the current market is SIG's P320 XTen, a full-sized 15+1 shot 10mm with a full 5-inch barrel and 8.5-inch overall length, shown compared with the FN 510 above. While also optics-ready, the slightly larger SIG does not have a threaded barrel. Other 10mm double stacks in the same rough ballpark include the 16+1 Springfield Armory XDm Elite OSP and S&W's new 15+1 round M&P 2.0 10mm, which are also optics- but not suppressor-ready.  Advantage: FN.
The FN 510 Tactical SilencerCo Hybrid suppressor
The FN 510 Tactical has an extended barrel with .578x28 right-hand threads that allow the pistol to be equipped with a suppressor or muzzle device (shown here with a SilencerCo Hybrid 46M). The Hybrid 46M allows for the removal of a front module, which provides the user with a shorter and lighter suppressor body still capable of effectively suppressing all centerfire pistol cartridges as well as rifle offerings as large as .45-70 Govt and .458 SOCOM. 
The FN 510 Tactical
The FN 510 Tactical has excellent suppressor-height steel Tritium lamp dovetail sights that co-witness with most MRD optics. Like the FN 509 Tactical series, they have distinctive "ears" that protect the rear sight assembly. 
The FN 510 Tactical MRD sheet
Between a series of MRD plates and screw sets, most included, the 510 can accommodate the Leupold DeltaPoint Pro, Trijicon RMR/SRO, Docter Optic, Vortex Venom/Viper/Razor, Holosun 507/508, C-More STS2, and Burris Fast Fire red dots, plus all those from the likes of Swampfox, etc. that fit the same footprints. 
Steiner MPS on The FN 510 Tactical
The company also has plates available for the Aimpoint ACRO and Steiner MPS mailbox-style dots, which we love.
The FN 510 Tactical
FN America bills the standard striker-fired trigger pack on the FN 510 as "precision-tuned, target-grade" and we found it breaks cleanly at approximately 6 pounds on average with a short reset.

The trigger is shown below with full-house Speer (Federal) 200-grain Gold Dot Hollow Points.



The FN 510 Tactical field strip
Disassembly is easy with the on-frame 90-degree take-down lever. Note the basic layout that is familiar to anyone who has field stripped an FN 509 or FNS. Of note, the FN 510 uses a high-endurance conical striker as well as a polished feed ramp and chamber for reliability. 
The FN 510 Tactical ergos
When it comes to ergonomics, the grip frame has good texture patterns in a 360-degree layout, and the pistol incorporates interchangeable backstraps. Also, note the lanyard port and large push-button magazine release. 
The FN 510 Tactical left side controls
The mag release and slide catch are ambidextrous, while the FN 510 feels great in the hand, no doubt ready to provide a companion to those in competition or in need of peace of mind in dangerous animal territory. 
The FN 510 Tactical
When it comes to the mags themselves, the FN 510 ships to most states with a standard flush-fit 15+1 round magazine and an extended 22+1 round mag. Those living in restricted areas have to make do with 10+1 round compliant capacity mags until they can repeal local prohibitions. 
The FN 510 Tactical accessory rail
Note the FN 510's forward slide serrations and deep M1913-style accessory rail on the frame.
FN 510 target
Thus far, we have put about 300 rounds of assorted Federal Premium and Speer Gold Dot through the FN 510, with no issues to report and very decent practical accuracy. Expect to see a longer review once we have upped that figure. 
The FN 510 Tactical
The MSRP for the FN 510 series pistol starts at $1,139, and it is available in both FDE and black. 


The FN 510 Tactical and FN 545
It was introduced in tandem with the new FN 545 Tactical, in .45 ACP, which we will have a closer look at later this week.


revolver barrel loading graphic