FMK G3 9mm 3.87 in Barrel 10-Round Black/Blue

About this product

What is the FMK G3 9mm pistol? It’s a California-compliant, optics-ready compact handgun with a 3.87-inch barrel and 10-round magazine designed specifically for concealed carry in restricted states. Built on a polymer frame with a nitride-finished slide, it accepts micro red dots without adapter plates and features a rubberized backstrap for improved control. The G3 fills a specific niche in the market between full-size duty pistols and subcompacts, offering a balance of shootability and concealment that meets stringent capacity regulations.

What is the FMK G3 used for?

This pistol is designed for everyday concealed carry in states with magazine capacity restrictions, delivering reliable performance in a compact package. With its 3.87-inch barrel and overall length of 6.8 inches, it balances concealment with shootability, while the optic-ready slide allows for rapid target acquisition with micro red dots. The 10-round magazine ensures compliance in restrictive jurisdictions without sacrificing ergonomics or control.

How does the FMK G3 compare to the Glock 19?

The FMK G3 is more compliant-oriented and optics-ready out of the box, while the Glock 19 offers greater aftermarket support and proven durability. The G3 weighs 22.4 ounces unloaded—2.6 ounces lighter than a stock Glock 19—and includes a factory-milled slide for optics, whereas the Glock requires third-party milling. However, the Glock 19’s 15-round standard capacity and vast holster compatibility make it the better choice for unrestricted states, while the G3 excels where 10-round limits apply.

What does it weigh and what are the dimensions?

Unloaded weight is 22.4 ounces, with an overall length of 6.8 inches, height of 4.8 inches, and width of 1.2 inches. The 3.87-inch stainless steel barrel is match-polished for consistent lockup, and the slim profile slides easily into IWB holsters. These dimensions place it squarely in the compact category, comparable to a Smith & Wesson M&P9 Compact but with a more aggressive grip texture and optic readiness.

Who is this NOT for?

This pistol is not for shooters in free states who want standard-capacity magazines or those seeking a suppressor host platform. The fixed barrel and non-threaded design preclude suppressor use, and the 10-round limit feels restrictive compared to the the Stevens 334 Rifle | .308 Win, 20in Matte Black Synthetic’s 4+1 capacity. If you prioritize high round counts or night shooting, the fixed sights and lack of rail space make this a poor choice.

What's in the box?

You get one 10-round magazine, a cable lock, and the pistol itself—no spare mags or cleaning tools. The minimalist packaging reflects the budget-oriented nature of this firearm, and you’ll need to source additional magazines and a holster separately. Compared to the Stevens 555 Sporting O/U 12 Gauge 30in 3in Chamber, which includes five chokes, the FMK G3 is spartan but functional.

Is the FMK G3 worth it at $308.99?

At this price, it’s a solid value for compliance-driven buyers who want an optic-ready platform without modification costs. The included optic cut saves $150-$200 versus aftermarket milling, and the rubberized grip enhances control over slicker frames like the SCCY CPX-2. However, the single magazine and basic sights mean additional investment upfront, so total cost of ownership climbs quickly if you need extras.