FMK Mach 9 G3 | 9mm | 4″ Barrel | Optic Ready

The FMK Mach 9 G3 is an optic-ready 9mm semi-automatic pistol with a 4-inch barrel and a dark gray polymer frame designed for compact carry and fast target acquisition. The slide is factory-cut to accept common micro red-dot footprints without plates, and the low-sitting barrel geometry aims to improve point-of-aim and reduce muzzle rise. It includes one magazine and Glock-compatible fixed sights out of the box. Consider pairing this pistol with a Vortex Venom micro red-dot for a durable, sub-$1000 optic that fits the factory cut.

Product Specifications

• The caliber is 9mm.
• The barrel measures 4 inches with a 1:16″ twist.
• The action is listed as Single Action.
• Reported capacity is varies by source (10, 13+1, 14+1) and requires review.
• The pistol includes one magazine.
• The slide is optic cut and serrated for micro red-dot optics.
• The slide material is reported as high carbon steel with a black finish.
• The barrel material is reported as stainless steel.
• The frame finish is dark gray polymer and features a Picatinny rail.
• The grip uses a black shock-absorbing backstrap.
• The firearm is fitted with Glock-compatible fixed sights.
• A loaded chamber indicator is included on the slide.
• The overall length is listed as 6.75 inches.
• The weight is listed as 28 oz.
• UPC: 850979006066.

The Mach 9 G3 is built for users who want a compact carry-friendly platform with native red-dot capability and a predictable trigger feel. Its accessory-ready frame and low-profile barrel geometry make it straightforward to set up for everyday carry or for precise, repeatable practice at the range. If you want a compact 9mm that accepts common micro red dots without additional plates, the Mach 9 G3 offers a practical baseline with modern ergonomics and factory optic compatibility.

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