The Rost Martin RM1C in Stone Gray is a semi-automatic pistol chambered in 9mm Luger with a 4-inch barrel and a 10+1 round capacity. It shares the same platform as the FDE variant and comes in a grey finish. Vendor listings note it as a compact service-size pistol with consistent semi-automatic operation. 
 

Key Specifications 

• Brand: Rost Martin 
• Model: RM1C 
• Caliber: 9mm Luger 
• Action: Semi Auto 
• Capacity: 10+1 rounds 
• Barrel Length: 4 inches 
• Color/Finish: Stone Gray 
   

Detailed Features 

• Stone Gray finish 
• 4-inch barrel 
• 10+1 round capacity 
• Semi-automatic operation

Owners of the RM1C in Stone Gray often note the subdued color as a practical choice that does not show holster wear as readily as darker finishes. The 4-inch barrel and 9mm Luger chambering draw the usual positive comments about manageable recoil and ammunition availability.

The Rost Martin brand draws curiosity more than skepticism from most buyers, though the limited track record does come up. Owners who have put rounds through the RM1C tend to report solid early reliability, while acknowledging that the pistol lacks the ecosystem of support parts and accessories found around more established platforms.

For the price, the RM1C is considered competitive by owners who prioritize value. The most common criticism is the limited holster selection, which can be a practical inconvenience. Build quality impressions are positive, with the Stone Gray finish drawing particular compliments for uniformity.