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FMK MK G3 9mm Pistol 4.5″ Threaded Barrel 14rd Optic Ready Blue Jay

UPC: 850979006363

$328.99

2 in stock

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Description

There aren't many pistols out there wearing a Blue Jay frame, and that's part of the fun with this FMK MK G3. Underneath the standout color is a genuinely practical 9mm: a 4.5-inch polished stainless steel barrel that comes threaded from the factory, so you can spin on a suppressor or compensator without sending your slide off for machining. The barrel also sits low in the frame, which keeps muzzle flip in check and helps the gun point naturally when you bring it up fast.

Optic Ready Without the Plate Hassle

The G3 slide is cut to take a Burris Fastfire 3, Vortex Viper, Vortex Venom, or Trijicon RMR directly, no adapter plates to buy or lose. That direct mount setup keeps your dot lower to the bore, which makes finding it quicker and co-witnessing easier. Front and rear serrations give you plenty of grip for press checks and racking, whether your hands are dry or sweaty.

A Grip That Meets You Halfway

FMK put real thought into the ergonomics here. The rubberized backstrap soaks up felt recoil and settles into your palm instead of fighting it, and the frame geometry works well for both larger and smaller hands. The Fast Action trigger gives you a short, light pull that resets quick, and the beveled magwell plus upgraded metal slide stop make reloads smoother than you'd expect at this price point. Magazines drop free, the way they should.

Where the MK G3 Earns Its Keep

With 14+1 rounds of 9mm on tap, fixed sights, a Picatinny rail up front for a light or laser, and that threaded muzzle, this is a pistol that can pull double duty. Run it as a home defense gun with a can and a light, or bring it to the range as an affordable host for your suppressor. It's built entirely in the USA, and for the money, it packs in features that usually cost quite a bit more.

Key Specifications

  • Manufacturer: FMK Firearms
  • Model: MK G3 (Gen 3)
  • Manufacturer Part Number: FMKG49TBJ
  • UPC: 850979006363
  • Caliber: 9mm Luger
  • Capacity: 14+1 Rounds
  • Barrel: 4.5" Threaded, Polished Stainless Steel
  • Action: Semi-Auto, Striker Fired
  • Trigger: Fast Action, Short Pull
  • Slide: Optic Ready, Front and Rear Serrations
  • Optic Compatibility: Burris Fastfire 3, Vortex Viper/Venom, Trijicon RMR (Direct Mount)
  • Sights: Fixed
  • Safety: Decocker
  • Frame: Polymer with Picatinny Rail, Blue Jay
  • Grip: Textured with Rubberized Backstrap
  • Country of Origin: USA

What’s Included

  • FMK MK G3 9mm pistol
  • One 14-round magazine
  • Owner's manual

Frequently Asked Questions

Which red dots fit the FMK MK G3 without an adapter plate?

The G3 slide is cut for direct mounting of the Burris Fastfire 3, Vortex Viper, Vortex Venom, and Trijicon RMR footprints. No adapter plates are required, which keeps the optic sitting lower and cuts down on parts that can work loose. If your optic shares one of those footprints, there's a good chance it will fit too, but it's worth confirming with the optic maker first.

Can I run a suppressor on this MK G3?

Yes, that's the main draw of this particular configuration. The 4.5-inch polished stainless steel barrel comes threaded from the factory, so it's ready to accept a suppressor or muzzle device designed for 9mm pistols. Just double check thread compatibility with your specific can or comp before mounting.

How does the trigger feel on the FMK G3?

FMK's Fast Action trigger gives you a short, light pull with a quick reset, which is a noticeable step up from the longer double-action-style pulls on earlier FMK models. It's a striker-fired setup that feels snappy for follow-up shots at the range. Most people find it easy to shoot well right out of the box.

Is the FMK MK G3 a good size for concealed carry?

It's a compact frame with minimal external protrusions and a low-sitting barrel, so it carries and draws cleanly. Keep in mind this version has a 4.5-inch threaded barrel, so the muzzle extends a bit past the slide compared to the standard model. Plenty of people carry threaded-barrel pistols, you'll just want a holster with an open muzzle end.

Additional information

UPC

850979006363

Manufacturer

Manufacturer Part Number

FMKG49TBJ

Caliber/Gauge

9mm

Capacity

14

Color

Blue Jay

Barrel Length

4.5"

Model

Safety

Decocker

Sights

Fixed Sights

Action

Product Type

Striker Fired

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