The Rost Martin RM1F is a full-size, striker-fired 9mm pistol with a 4.5-inch barrel and an optics-ready slide. It pairs a steel slide with a black polymer frame, giving it a practical, lightweight platform for range use or general carry. The pistol has a 15+1 capacity and textured grip surfaces for a secure hold. 
 

Key Specifications 

• Brand: Rost Martin 
• Model: RM1F 
• Caliber: 9mm 
• Action: Semi Auto (Striker-Fired) 
• Capacity: 15+1 
• Barrel Length: 4.5" 
• Finish: Black 
• Frame Material: Polymer / Steel Slide 
   

Detailed Features 

• Optics-ready slide cut for mounting a compatible red dot sight 
• Textured black polymer frame for a secure, comfortable grip 
• Serrated rear sight paired with a front dot for a clear sight picture 
• Steel slide over a polymer frame keeps the pistol practical and lightweight 
• Full-size 9mm layout with 15+1 capacity for range and general-purpose use

The RM1F is Rost Martin's full-size entry in its striker-fired 9mm lineup, and it draws buyers who want a larger-frame carry or duty-style pistol from a newer domestic maker. Owners typically report the pistol runs reliably once broken in, and the steel slide over a polymer frame is seen as a sensible, proven combination rather than anything experimental. As with the rest of the lineup, some buyers note they would like more time in the field before fully trusting the brand for daily carry.

Ergonomically, the textured frame and full-size grip get positive comments for control during extended range sessions, and the optics-ready slide makes it straightforward to add a red dot. The front dot and serrated rear sight combination is considered a solid factory option for those running irons only.

On value, the RM1F sits alongside established full-size 9mm pistols on price, and buyers tend to compare its capacity and optics-ready slide against more familiar options before deciding. The 15+1 capacity is viewed as competitive for the full-size class, and owners who like supporting a newer manufacturer see it as a reasonable alternative to the usual major brands.