The Rost Martin RM1C Comp Bundle is a compact-frame 9mm semi-automatic pistol with a 4-inch compensated barrel. It ships in a CA-compliant configuration with a 10+1 capacity and includes a Viridian RFX-11 Green Dot optic. The polymer frame has a Picatinny rail for accessories. 
 

Key Specifications 

• Brand: Rost Martin 
• Model: RM1C 
• Caliber: 9mm 
• Action: Semi Auto 
• Capacity: 10+1 
• Barrel Length: 4 in (compensated) 
• Color/Finish: Black 
   

Detailed Features 

• Compensated 4-inch barrel for reduced muzzle rise 
• Compact polymer frame with integrated Picatinny rail 
• Optic-ready slide with Viridian RFX-11 Green Dot included 
• CA-compliant 10-round magazine configuration 
• Full bundle package including optic out of the box

Owners of the RM1C Comp Bundle tend to focus on the value of the included Viridian green dot. Getting a zeroed optic in the box means less money spent before the first range session, and most buyers consider it a genuine plus rather than a gimmick.

The compensated barrel gets mixed reactions. Shooters running it at the range notice a measurable difference in muzzle flip, but some find the added length awkward for concealed carry in a jacket or IWB holster. The compact frame size draws appreciation from those with smaller hands.

The CA-compliant 10-round limit frustrates buyers outside California who feel the bundle is configured around a restriction that doesn't apply to them. For California residents the RM1C is one of the few compensator-equipped options available, which drives loyalty in that market. Build quality opinions vary; the brand is newer to the market and long-term reliability data is still accumulating.