FMK Firearms G3 9mm 3.87″ 10rd Black/Bronze

Description

The FMK Firearms G3 9mm 3.87″ 10rd Black/Bronze is a compact, striker-fired semi-auto built for urban carry and home defense. It ships optic-ready with a polished stainless barrel and a rubberized backstrap that cuts recoil and locks your grip. At 10+1 capacity and a 3.87-inch barrel, this pistol keeps a low profile without sacrificing control.

Manufacturer	FMK Firearms
Model	G3
Material	Polymer frame, stainless steel barrel
Compatibility	Optic-ready slide (RMR, Holosun, etc.)
Finish	Black frame / Bronze slide
Weight	22 oz (unloaded, per manufacturer specs)
Condition	New

Key Features

• Optic-Ready Slide — Ships cut for popular miniature red-dot sights, so you can mount an RMR or Holosun without machining. Why it matters: Faster target acquisition in low-light hallways or parking garages.
• Polished Stainless Steel Barrel — Reduces friction and aids corrosion resistance. Why it matters: Reliable feeding and easier cleaning after range sessions.
• Rubberized Backstrap — Textured grip panel that soaks up recoil and adapts to different hand sizes. Why it matters: Keeps the gun planted during rapid follow-up shots, even with sweaty palms.
• Low-Sitting Barrel & Streamlined Slide — Low bore axis reduces muzzle flip. Why it matters: Tighter shot groups and faster re-acquisition when seconds count.
• 10-Round Magazine — Compliant in restricted states, but still gives you a full grip. Why it matters: No need to hunt down special mags for travel or legal carry.

Who It’s For

Urban CCW holders who want a compact 9mm that’s optic-ready out of the box. Apartment dwellers who need a reliable home-defense pistol that won’t over-penetrate or feel bulky under a jacket. Shooters on a budget who refuse to compromise on features like a threaded barrel or modular grip.

Pros & Cons

• Pro: Optic-ready slide included at this price point is rare — saves you $100+ on milling.
• Pro: Rubberized backstrap actually works; reduces felt recoil noticeably compared to standard polymer.
• Cons: Aftermarket holster support is still growing — check compatibility before buying. The bronze finish may show holster wear faster than all-black.

Comparison

Feature	FMK G3 Black/Bronze	Zev Technologies OZ9	Agency Arms Syndicate
Price	$308.56	$1,200+	$1,500+
Optic Ready	Yes, factory cut	Yes, with plate system	Yes, RMR cut
Barrel Length	3.87″	4.0″	3.9″
Capacity	10+1	15+1	15+1
Weight	22 oz	24 oz	23 oz
Best For	Budget-conscious urban CCW	Competition / high-end carry	Duty / custom build

The FMK G3 gives you an optic-ready, low-bore-axis pistol for under $310 — a fraction of what you’d pay for a Zev or Agency build. You lose some aftermarket parts support and capacity, but for daily carry in a restricted state, the trade-off is worth it.

FAQ

Does the FMK G3 come with a threaded barrel?

No, the standard G3 ships with a polished stainless steel barrel that is not threaded. If you need a suppressor-ready model, look at the FMK G3 Tactical variant (sold separately).

What optics fit the slide cut?

The slide is cut for popular miniature red-dot sights including Trijicon RMR, Holosun 407C/507C, and similar footprints. You may need an adapter plate for other brands.

Is this pistol California-legal?

The FMK G3 10rd model is on the California Roster of Handguns Certified for Sale as of this writing. Always check your local laws before purchasing.

Can I use standard Glock magazines in the FMK G3?

No, the FMK G3 uses proprietary 10-round magazines. It does not accept Glock or other aftermarket mags.

What holsters fit the FMK G3?

Holster support is limited but growing. Look for models specifically listed for FMK G3 or consider a custom kydex holster. The pistol does not fit standard Glock holsters.

Buy with Confidence

• ✅ Nationwide delivery to all 50 states
• ✅ Ships within 1-2 business days
• ✅ 30-day return policy
• ✅ Secure checkout with encryption

Last updated: April 2026

Related: Semi Auto Handguns | Compact Pistols | Optic-Ready Handguns