The Rost Martin RM1CX 9mm Pistol (brand part no. RM1XBH) is a striker-fired semi-auto handgun built by Rost Martin for shooters who want a full-capacity duty-size pistol with a modern optics-ready slide. Finished in black, it runs a 4-inch barrel and holds 19+1 rounds, giving it the capacity and balance of a serious duty or home-defense pistol. The optics-ready slide cut lets shooters mount a red dot directly for faster target acquisition, while the factory front sight keeps the pistol usable as a co-witnessed backup or standalone iron-sight setup. It’s built for shooters who want a modern, capacity-forward 9mm platform without compromise.

Key Specifications

• Chambered in 9mm, one of the most widely available and effective defensive calibers.
• Holds 19+1 rounds for a high-capacity duty or home-defense loadout.
• Runs a 4-inch barrel for a balance of sight radius and concealability.
• Features an optics-ready slide for direct red dot mounting without an adapter plate.
• Equipped with a front sight for reliable co-witness or standalone iron-sight use.

Frequently Asked Questions

Is this pistol optics-ready? Yes, the slide is cut for direct red dot mounting.

How many rounds does it hold? It holds 19+1 rounds of 9mm for a high-capacity duty loadout.

What’s the barrel length? It runs a 4-inch barrel, balancing sight radius with everyday carry and duty use.

Buy the Rost Martin RM1CX 9mm Pistol, 19+1, Optics-Ready

Shooters looking for a full-capacity, red-dot-ready 9mm will find the RM1CX built for exactly that role. Order it from our semi-auto handgun lineup and our Lubbock, Texas team will get it transferred to your FFL fast.