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The RM1C Comp is Rost Martin's compensated take on their already well-regarded compact 9mm. The platform starts with a 4-inch hammer-forged match barrel with an integral compensator that mates to a matching port cut directly into the slide. Reviewers who've put rounds through it note the comp noticeably cuts muzzle rise compared to a standard 4-inch striker-fired pistol, which translates to faster, more confident shooting whether you're on the range or carrying it for personal defense.
Ergonomics are a genuine strong point here. Rost Martin's proprietary Responsive Grip Texturing (RGT) uses graduated laser stippling that essentially grips back the harder you squeeze, without chewing up your hands. The frame also includes textured index points on both sides above the trigger guard, an extended beavertail, undercut trigger guard, and swappable modular backstraps so the gun can be fit to different hand sizes. Ambidextrous controls handle both left- and right-handed users, and the funnel-flared magwell helps you reload without fumbling. The flat-face trigger has a clean break and short reset, and the Tenifer-treated steel slide resists corrosion and wear through hard use.
Out of the box this bundle includes a Viridian RFX11 green dot reflex sight already set up on the optic-ready slide. The RFX11 runs a crisp 3 MOA green dot with fully automatic brightness control via an ambient light sensor, Instant-On activation, and a claimed 30,000-hour battery life on a single CR2032. It uses the Shield RMSc footprint and weighs next to nothing. Four 10-round magazines are also included, and the full 3-slot Picatinny rail up front keeps the door open for adding a weapon light down the road.
Rost Martin backs the RM1C with a lifetime warranty, built on a 50,000-round torture test that included drop, mud, sand, ice, and dirt testing. Holster availability is solid, with support from well-known makers including ANR Design, Blackpoint Tactical, CrossBreed, DeSantis, and We The People. This bundle is a strong, ready-to-run package for anyone who wants a compensated, optic-equipped compact 9mm without having to piece it all together themselves.
Independent range reviewers have noted roughly a 25-30% reduction in muzzle rise compared to a standard 4-inch compact 9mm. Rost Martin's own claim puts it at 25%. The comp works through a port cut into the top of the barrel that aligns with a matching port in the slide, venting gas upward to keep the muzzle flat. The difference is noticeable during strings of fire and helps you get back on target faster.
The slide ships with a metal RMR-compatible optic plate installed, which handles Trijicon RMR and similar footprints. The included Viridian RFX11 uses the Shield RMSc footprint, and Rost Martin offers additional optic plates for other popular footprints through their website. If you want to swap to a different optic down the road, you have options.
Yes. Rost Martin confirmed the RM1C Comp shares the same external dimensions as the standard RM1C, so holsters made for the original model will work with the Comp. The RM1C has solid holster support from makers like ANR Design, Blackpoint Tactical, CrossBreed, DeSantis, and We The People, and reviewers have noted it also fits well in holsters made for the Glock 19 and CZ P10C.
This specific bundle includes four 10-round magazines. The RM1C platform uses steel, double-stack magazines made by Mec-Gar and branded with the Rost Martin logo. The pistol is also compatible with standard CZ P10C magazines, which gives you flexibility in sourcing extras. Extra Rost Martin factory mags are very affordable at around $25 each.
The Viridian RFX11 is a compact micro reflex sight that runs a 3 MOA green dot with fully automatic brightness control via an ambient light sensor, so there are no buttons to fiddle with. It activates instantly when you draw, shuts off automatically when not in use, and is rated for over 30,000 hours of battery life on a CR2032. It uses the Shield RMSc footprint and weighs under half an ounce.
The RM1C Comp sits in the same size class as a Glock 19 with a 7.1-inch overall length, 5-inch height, and 1.1-inch grip width, so it's on the larger end of compact carry pistols. It's a comfortable range gun and a capable carry option for those who prefer full-size grip ergonomics. The compensator adds no length to the profile since it's integral to the barrel and slide, keeping the package the same size as the standard RM1C.
| UPC | 850067485841 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | RM1CBLKOSP10CA(COMP)-P |
| Action | |
| Barrel Length | 4" |
| Caliber/Gauge | 9mm |
| Capacity | 10 |
| Color | Black |
| Model | |
| Product Type | Striker Fired |
| Shipping Weight | 4.7 |
| Sights | Iron Sights |
| Slide Description | Integrated Compensator/Serrated w/Optic |
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