FMK G3 Threaded Barrel Pistol 9mm 4.5 in. Dark Grey w/ Glock Comp Sights 14 rd.

Description

The FMK G3 Threaded Barrel Pistol 9mm 4.5 in. Dark Grey w/ Glock Comp Sights 14 rd. delivers a factory-ready suppressor host with an optics-mounting slide that skips the adapter plates. This is a straight-up urban defensive tool for anyone who carries in the city and needs a compact 9mm that runs suppressed or loud, day or night. At $328.99, you get a threaded barrel, Glock-compatible suppressor-height sights, and a 14-round magazine out of the box.

Specification	Detail
Manufacturer	FMK Firearms
Model	G3 (FMK9C1-G3)
Material	Stainless steel barrel, polymer frame
Compatibility	Burris Fastfire 3, Vortex Viper, Vortex Venom, Trijicon RMR optics (no plate needed)
Finish	Dark grey
Weight	24.2 oz (unloaded, per manufacturer specs)
Condition	New

Key Features

• Threaded Barrel (1/2×28) — WHY IT MATTERS: Lets you run a suppressor or compensator without aftermarket work, keeping your urban home defense setup hearing-safe or reducing muzzle flip in tight spaces.
• Optic-Ready Slide, No Plates — WHY IT MATTERS: Direct-mount your Burris Fastfire 3, Vortex Viper, Vortex Venom, or Trijicon RMR without extra hardware. That means lower bore axis and zero plate failure points when seconds count.
• Glock-Compatible Suppressor Sights — WHY IT MATTERS: Co-witness with your red dot and still see your irons through a can. For apartment dwellers who train low-light entries, this is non-negotiable.
• Fast Action Trigger — WHY IT MATTERS: Short, crisp pull with a drop-free magazine. In a defensive scenario, you don’t want mush — this reset lets you stay on target.
• 14-Round Capacity — WHY IT MATTERS: More rounds than a standard 10-round mag, but still compact enough for CCW. That extra 4 rounds can make the difference in a multiple-threat situation.

Who It’s For

Urban CCW holders who want a suppressor-ready 9mm without paying custom shop prices. Apartment dwellers who need a pistol that can run a can for indoor hearing protection. Shooters who want to mount a red dot without buying adapter plates or sending the slide out for milling.

Pros & Cons

• Pro: Direct-mount optics cut saves $50–100 on plates and gunsmithing.
• Pro: Threaded barrel included at this price point is rare — most budget guns charge extra.
• Pro: Glock-comp sights work with standard holsters and suppressor setups.
• Con: Aftermarket holster support is growing but not as deep as Glock or Sig — check compatibility before buying. Per FMK specs, the G3 uses a proprietary frame shape, so some universal holsters may not fit perfectly.

Comparison

Feature	FMK G3 Threaded	Zev Technologies OZ9	Lone Wolf Distributors Timberwolf
Price	$328.99	$1,200+	$450–550
Threaded Barrel	Included (1/2×28)	Optional ($200+ extra)	Included
Optic Mount	Direct (no plate)	Direct (RMR/Holosun)	Plate system
Magazine Capacity	14 rounds	17 rounds	15 rounds
Warranty	Limited lifetime	Limited lifetime	1 year

FAQ

What optics fit the FMK G3 without a plate?

The FMK G3 slide is cut for Burris Fastfire 3, Vortex Viper, Vortex Venom, and Trijicon RMR footprints. No adapter plate required — just bolt the optic directly to the slide.

Does the threaded barrel come with a thread protector?

Yes, the FMK G3 ships with a thread protector installed on the 1/2×28 barrel. Remove it when attaching a suppressor or compensator.

Are the Glock comp sights steel or polymer?

They are steel suppressor-height sights with a white dot front and two-dot rear. They co-witness with most micro red dots and clear standard suppressor cans.

Will this fit my Glock 19 holster?

Not directly. The FMK G3 has a different trigger guard and slide profile than a Glock 19. Some universal holsters work, but we recommend holsters specifically molded for the FMK G3.

Trust Block

• ✅ Nationwide delivery (all 50 states)
• ✅ Ships 1-2 business days
• ✅ 30-day returns
• ✅ Secure checkout

Browse more from our Semi Auto Handguns collection or check out Suppressors and Red Dot Sights to complete your urban setup.

Last updated: April 2026