The Rost Martin RM1C is a 9mm DAO compact pistol with a polymer frame, Picatinny rail, and an optics-ready slide cut for the RMR footprint. It ships with two magazines and an optic plate. 
 

Key Specifications 

• Brand: Rost Martin 
• Model Name: RM1C 
• Caliber: 9mm Luger 
• Action Type: Double Action Only (DAO) 
• Capacity: 17+1 rounds 
• Barrel Length: 4 inches 
• Overall Length: 7.10 inches 
• Weight: 21.50 oz 
• Height: 5.50 inches 
• Width: 1.10 inches 
• Sights Configuration: White Dot Front & Serrated Rear 
• Frame Material: Polymer with Picatinny Rail 
• Slide Material/Finish: Nitrocarburized Steel / Black Tenifer 
• Grips Type: RGT (Right Hand Grip) 
• Included Accessories: Two magazines, Optic plate 
   

Detailed Features 

 
The DAO trigger gives a consistent pull on every shot — approximately 5 lbs — with no single-action mode. The RMR-pattern optics cut on the slide accepts most popular micro red dots with the included plate. The Picatinny rail under the dust cover takes standard lights and lasers. The ambidextrous controls work for both hand orientations. At 21.5 oz with a 4-inch barrel, the weight is on the lighter end for a 17+1 9mm.

Owners are drawn to the RM1C for its 17+1 capacity in a compact 21.5 oz package with a factory optics cut. For a newer brand, build quality and reliability reports have been generally positive.

The DAO trigger is the most common discussion point. Some owners like the consistent pull for carry, but those used to striker-fired or SA/DA systems find the heavier pull takes adjustment, particularly for accurate slow fire. The optics-ready slide and Picatinny rail are practical features at the price point.

Concealed carry feedback is positive given the weight and dimensions. The RM1C is a newer entrant against established competitors, and some owners note that holster selection is still limited. Aftermarket parts are also thinner than for Glock or Sig platforms.