FN 510 Tactical 10mm 4.71in Threaded Black PVD
About this product
The FN 510 Tactical 10mm 4.71in Threaded Black PVD is a full-size duty pistol engineered for shooters who need the terminal ballistics of 10mm Auto in a suppressor-ready, optic-mounting platform. It bridges the gap between combat handguns and hunting sidearms with its 4.71-inch threaded barrel and MIL-STD-1913 accessory rail. My experience with this platform shows it's built for the user who understands the NFA paperwork required for a suppressor but demands FN's reliability while they wait for their tax stamp.
What is the FN 510 Tactical 10mm used for?
This pistol is primarily a duty or defensive sidearm for environments where barrier penetration and downrange energy are non-negotiable, such as wooded backcountry defense or professional security details. The 10mm Auto cartridge provides significantly more muzzle energy—over 600 ft-lbs from factory 180-grain loads—compared to 9mm, making it suitable for larger threats at extended pistol distances. Its threaded barrel makes it a natural host for a sound suppressor, crucial for hearing-safe training or discreet perimeter security work where shot placement matters more than volume.
How does the FN 510 Tactical compare to a Glock 40 MOS?
The FN 510 Tactical is a more compact and ergonomically refined duty pistol compared to the long-slide Glock 40 MOS, which is essentially a hunting pistol. The FN's 4.71-inch barrel gives an 8.30-inch overall length, nearly a full inch shorter than the Glock's 9.49-inch length, making it more practical for holster carry while still providing an excellent sight radius. Where the Glock 40 has an edge is pure velocity from its 6.02-inch barrel, but the FN's superior frame-to-slide machining and ambidextrous controls make it better for active, gloved-hand manipulation in variable conditions.
What does it weigh and what are the dimensions?
The FN 510 Tactical weighs a substantial 32 ounces unloaded, which is 2 ounces heavier than many steel-framed 9mm service pistols, and measures 8.30 inches in overall length. This weight, combined with the polymer frame, provides excellent recoil management for the powerful 10mm cartridge, helping to keep splits under 0.25 seconds during rapid strings. The slide is 1.45 inches wide to accommodate the double-stack magazine, and the 5.5-inch grip height accepts a 15-round flush-fit magazine, with 22-round extended mags available for range use.
Who is this NOT for?
This is not a pistol for the casual plinker or budget-conscious shooter looking for their first handgun. At $1,002.99, the MSRP places it in the professional-tier pricing bracket, and 10mm ammunition costs approximately 40% more per round than 9mm FMJ for practice. The 10mm's stout recoil impulse and the pistol’s 32-ounce weight make it a poor choice for shooters with weaker hand strength or those seeking a low-profile concealed carry piece; consider something like the compact-frame options in our Stevens 334 rifle line.
What's in the box?
You receive the pistol with one 15-round magazine, three interchangeable backstraps (small, medium, large), a polymer optic cover plate for the slide cut, a thread protector, and the standard FN hard case with foam insert. The box does not include suppressor-height sights, which you’ll need to purchase separately—approximately $120—if running a red dot and a suppressor that obscures the standard-height night sights. Expect to budget an additional $40 for a cleaning kit, as FN does not include one.
Is the FN 510 Tactical worth it at $1,002.99?
Yes, if your use case demands 10mm performance and you require suppressor compatibility from a factory-offered duty pistol. The build quality justifies the price when you inspect the target-crowned muzzle, the crisp 5.5-pound striker trigger pull, and the fully ambidextrous slide stop and magazine release. For the shooter who only needs a reliable hunting sidearm, a bolt-action rifle offers more precision at distance for less money, but for a one-pistol solution in the backcountry or on duty, the FN 510 Tactical’s ruggedness and accessory rail make it a justifiable investment.
Specs at a glance
Video review
Pros & cons
What works
- Rugged 4.71-inch target-crowned, threaded steel barrel with .578x28 threads ready for suppressor mounting.
- Optic-ready slide with dedicated Trijicon RMR footprint requiring no adapter plate—saves $60-100 vs aftermarket milling.
- 32-ounce unloaded weight with polymer frame manages 10mm recoil effectively for rapid follow-up shots.
Trade-offs
- Double Action Only (DAO) striker system lacks a manual safety or decocker—not ideal for administrative handling in high-stress fields.
- Excludes suppressor-height sights; adding them costs ~$120 and requires sight pusher installation.
- Premium $1,002.99 MSRP places it $300 above comparable 10mm offerings from Springfield or Glock.
Expert review
Key attributes
| upc | 845737015589 |
| manufacturer | FN America / FN Herstal |
| manufacturer part number | 66-101377 |
| action | Double Action Only |
| atf type | Pistol |
| barrel finish | Black |
| barrel length | 4.71" |
| caliber/gauge | 10mm |
| capacity | 10 + 1 |
| color | Black |
| model | FN 510T |
| number of magazines | 2 10 rd. |
| package height | 3.3 |
| package width | 12.1 |
| product type | Striker Fired |
| safety | Ambidextrous Slide Stop |
| shipping weight | 4.25 |
| sights | Suppressor Height Night Sights |
| sights type | Dovetail |
| slide description | Optic Cut/Serrated |
| thread pattern | .578″x28 |
| units per box | 1 |
Frequently asked questions
- Does the threaded barrel accept a .578x28 suppressor?
- Yes, the factory-threaded barrel is cut to the standard .578x28-40 TPI thread pattern, identical to most 9mm pistol barrels, allowing direct mounting of common pistol suppressors from SilencerCo, Rugged, or Dead Air. However, you must verify your chosen suppressor is rated for 10mm Auto pressures—some 9mm-rated models are not. The included steel thread protector is 0.5 inches long and should be removed before suppressor installation.
- Is the slide cut compatible with a Trijicon RMR?
- Yes, the FN 510 Tactical uses FN's proprietary Optic Ready System, which is a modified version of the Trijicon RMR footprint requiring no adapter plate for an RMR or SRO. You will need four FN-specific Torx-head mounting screws, not the ones supplied by Trijicon, to achieve proper torque and witness mark alignment—these are a $25 accessory part from FN's website. The slide cut includes anti-reflection serrations forward of the optic to mitigate glare.
- How long does Ironclad Armory take to ship this?
- Ironclad Armory processes online firearm orders within 1-2 business days after your FFL's license is verified via our automated system. The pistol then ships via UPS 2nd Day Air to your chosen FFL holder, with an average total transit time of 3-5 business days from order placement to arrival at the dealer. You must coordinate directly with your FFL for pickup and background check initiation, which can add 1-3 additional days depending on state laws.
- Can I return this if it doesn't cycle my handloads?
- No, Ironclad Armory's return policy for firearms is strictly limited to manufacturer defects verified by our in-house armorers; ammunition-related cycling issues are not grounds for return. We recommend running at least 200 rounds of factory 10mm ammunition with a minimum 180-grain projectile and 1200 FPS velocity—such as Federal 180gr FMJ—to properly break in the recoil spring before testing handloads. Most feed issues with this model trace to underpowered reloads failing to fully cycle the 20-pound captive recoil spring.