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FMK G3 9mm 4.5″ Threaded Barrel Pistol, Burnt Bronze, 14rd

UPC: 850979006332

$328.99

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Description

The FMK 9C1 Gen 3 has quietly built a real following among folks who want a compact, accessory-ready 9mm without spending a fortune to get there. This particular version, the FMKG49TBB, stands out with its 4.5" polished stainless threaded barrel and Burnt Bronze frame finish. The threaded muzzle makes this a natural suppressor host right out of the box, and the extra half inch of barrel over the standard model gives you a slightly longer sight radius and a bit more velocity to work with.

The optics-ready slide is one of the G3's best selling points. FMK mills a direct-mount optic cut that fits the Burris Fastfire 3, Vortex Viper, Vortex Venom, and Trijicon RMR without needing adapter plates. That's a convenience you usually pay extra for on competing pistols. The carbon steel slide runs front and rear serrations, and the accessory rail on the polymer frame handles a light or laser without any fuss.

FMK put real thought into the ergonomics here. The bore axis sits low in the hand, which naturally reduces muzzle flip and helps you get back on target faster. The rubberized backstrap does more than look different from standard polymer guns — it actually absorbs some felt recoil and molds to your grip rather than making you work to hold the gun correctly. A high undercut trigger guard and beavertail cut let you get a solid high grip, and the whole package is ergonomically designed to work comfortably for both larger and smaller hands.

The trigger is FMK's Fast Action 804 mechanism — a single-action, striker-fired setup with a short, crisp pull and a drop-free magazine on release. The sights are fixed, the mag well is beveled for easy reloads, and the slide stop is a redesigned metal unit. At 14 rounds of 9mm in a compact frame, you've got solid capacity for home defense, range work, or carry duty. FMK is an American-made brand, and this pistol wears that identity with a clean, purposeful build.

Key Specifications

  • Manufacturer: FMK Firearms
  • MPN: FMKG49TBB
  • UPC: 850979006332
  • Model: 9C1 Gen 3
  • Caliber: 9mm Luger
  • Action: Striker-Fired, Semi-Auto
  • Barrel Length: 4.5"
  • Barrel Material: Polished Stainless Steel
  • Barrel Feature: Threaded Muzzle
  • Capacity: 14+1
  • Frame Material: Polymer
  • Slide Material: Carbon Steel
  • Color/Finish: Burnt Bronze Frame
  • Sights: Fixed
  • Safety: Decocker
  • Controls: Ambidextrous
  • Optics Ready: Yes — direct mount, no plates required
  • Rail: Picatinny Accessory Rail
  • Rifling Twist: 1:16" LH
  • Weight: 23.45 oz.
  • Overall Length: 6.85"
  • Height: 5.09"
  • Width: 1.14"

What’s Included

  • FMK G3 9mm Pistol (FMKG49TBB)
  • 1x 14-round magazine

Frequently Asked Questions

What thread pitch is the FMK G3 threaded barrel?

The FMK G3's 4.5" threaded barrel uses the standard 1/2×28 TPI thread pitch, which is the most common pitch for 9mm suppressors and compensators on the market. This means it's compatible with the vast majority of cans and muzzle devices you'll find from major suppressor manufacturers. Just make sure you pick up a thread protector if you plan to run it without a device attached.

Will my standard 9mm suppressor clear the slide on the FMK G3?

The 4.5" barrel extends far enough past the slide that most standard-diameter 9mm suppressors will clear the frame without any issues. That said, suppressor heights and diameters vary, so it's always worth double-checking the can's specs against the pistol's dimensions. The fixed sights are standard height, so if you regularly shoot suppressed, you may want to look into suppressor-height sights for a better sight picture.

Which red dot optics are compatible with the FMK G3 optic-cut slide?

The G3's optic-ready slide is direct-milled to accept the Burris Fastfire 3, Vortex Viper, Vortex Venom, and Trijicon RMR footprints without any adapter plates. It ships with a cover plate installed over the optic port, which you simply remove when you're ready to mount your optic. This is a cleaner, more secure setup than adapter plate systems.

Is the FMK G3 a good choice for concealed carry with the longer threaded barrel?

The threaded barrel version is a bit longer than the standard G3, which makes it slightly less ideal for everyday concealed carry compared to the standard 4-inch model. It's a better fit for home defense, range use, or as a dedicated suppressor host. If carry is your primary goal, FMK's standard-barrel G3 configurations might be a better match.

Does the FMK G3 use Glock-compatible magazines or sights?

The G3 uses FMK's own magazine format, so Glock magazines are not compatible. However, the G3's sights are cut to be compatible with Glock 19 aftermarket sight dimensions, which opens up a wide range of third-party upgrade options from major sight manufacturers.

What is the trigger like on the FMK G3?

The G3 runs FMK's 804 Fast Action Trigger, which is a single-action striker-fired mechanism with a noticeably short and crisp pull. It's designed for a quick reset and drop-free magazine release. Compared to a heavier double-action trigger, it feels more precise and consistent, especially for follow-up shots.

Additional information

UPC

850979006332

Manufacturer

Manufacturer Part Number

FMKG49TBB

Action

Barrel Length

4.5"

Caliber/Gauge

9mm

Capacity

14

Color

Burnt Bronze

Model

Product Type

Striker Fired

Safety

Decocker

Sights

Fixed Sights

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