The Rost Martin RM1C Comped is a 9mm semi-automatic pistol built around a 4-inch match barrel with an integral compensator to cut recoil and muzzle rise. The slide is optic-ready and ships with an RMR mounting plate, and the pistol wears a black finish over a polymer frame. 
 

Key Specifications 

• Brand: Rost Martin 
• Model: RM1C Comped 
• Caliber: 9mm 
• Action: Semi Auto 
• Barrel Length: 4 in 
• Capacity: 10+1 Rounds 
• Finish: Black 
   

Detailed Features 

• The integral compensator on the match barrel helps hold the sights on target through recoil. 
• The optic-ready slide comes with an RMR mounting plate installed for a red dot sight. 
• A flat-face trigger with a short reset supports faster, more consistent follow-up shots. 
• Ambidextrous slide and magazine releases suit both right- and left-handed shooters. 
• A manual safety and high-contrast iron sights round out the control layout.

Compensated 9mm pistols like the RM1C draw a lot of attention for how flat they shoot compared to a standard slide. Owners describe the integral compensator as genuinely useful for keeping the dot or irons on target between shots, and the fit and finish on the RM1C is generally described as tight for the price point.

Ergonomically, the flat-face trigger and ambidextrous controls get praised by shooters who run the gun both strong-hand and support-hand. The optic-ready slide with the RMR plate makes red dot setup straightforward, though a few owners note they would rather have the plate pre-cut for their specific optic footprint.

Value-wise, buyers comparing the RM1C to established compensated competition guns tend to see it as a budget-friendly way into that category. Aftermarket holster options are still catching up since the pistol is newer to the market, which some owners list as a minor downside.