Description
The ROST MARTIN RM1S 9mm 3.6-inch optic-ready black (2) 10-rd is a compact semi-auto built for shooters who demand an optics-forward concealed carry platform. Chambered in 9mm with a 3.6-inch barrel, this handgun ships with two 10-round magazines and an RMR-pattern mounting plate installed. Sized for everyday carry, the RM1S delivers a low-profile, black-finished package ready for red dot mounting right out of the box.
| Manufacturer | ROST MARTIN |
|---|---|
| Model | RM1S |
| Caliber | 9mm |
| Barrel Length | 3.6 inches |
| Capacity | (2) 10-round magazines |
| Slide | Optic-ready, RMR-pattern plate installed |
| Finish | Black |
| Weight | Per manufacturer specs: approximately 22 oz (unloaded) |
| Condition | New |
Key Features
- Optic-Ready Slide with RMR-Pattern Plate — WHY IT MATTERS: You can mount a micro red dot directly without milling or adapter plates, cutting setup time and keeping the slide low profile for reliable co-witness.
- 3.6-inch Barrel — WHY IT MATTERS: Balances concealability with enough sight radius and velocity for defensive loads, keeping the RM1S easy to carry without sacrificing terminal performance.
- Two 10-Round Magazines Included — WHY IT MATTERS: You get a spare mag right out of the box, reducing upfront cost and giving you a reload option for training or carry.
- Compact Frame Design — WHY IT MATTERS: The slim, rounded grip and shortened slide reduce printing under clothing, making it a solid choice for appendix or inside-the-waistband carry.
- Black Finish — WHY IT MATTERS: Corrosion-resistant and low-glare, this finish holds up to daily carry sweat and holster wear without showing scuffs easily.
Who It’s For
The RM1S is built for the concealed carrier who wants an optics-ready 9mm without the premium price tag. It fits shooters moving from iron sights to red dots, or anyone needing a compact backup gun that doesn’t force them to buy a separate slide or plate. If you’re looking for a budget-friendly way to run an RMR or Holosun 407C/507C on a small frame, this is your entry point.
Pros & Cons
- Pro: RMR-pattern plate pre-installed saves you $30-50 on aftermarket plates.
- Pro: Two 10-round mags included—most competitors ship with only one.
- Pro: 3.6-inch barrel is a sweet spot for concealability and accuracy.
- Con: Trigger pull is heavier than aftermarket triggers—expect around 6-7 lbs per manufacturer specs. You may want to upgrade if you’re used to tuned triggers.
Comparison
| Feature | ROST MARTIN RM1S | Zev Technologies OZ9c | Agency Arms Syndicate |
|---|---|---|---|
| Barrel Length | 3.6 inches | 3.7 inches | 4.0 inches |
| Optic Ready | Yes (RMR plate included) | Yes (RMR/Holosun) | Yes (RMR/Holosun) |
| Capacity | 10+1 (2 mags) | 10+1 (1 mag) | 10+1 (1 mag) |
| Weight (unloaded) | ~22 oz | ~24 oz | ~26 oz |
| Price | $439 | $1,200+ | $900+ |
| Trigger Pull | ~6.5 lbs (factory) | ~4.5 lbs | ~4.0 lbs |
The RM1S undercuts both competitors by over $400 while still delivering an optics-ready slide. You lose some trigger refinement and weight savings, but for a carry gun on a budget, the trade-off is worth it.
FAQ
Does the RM1S come with a mounting plate for my red dot?
Yes—it ships with an RMR-pattern plate installed. That covers Trijicon RMR, Holosun 407C/507C/508T, and most micro dots using the same footprint. You do not need to buy a separate plate.
How many magazines are included?
Two 10-round magazines are included in the box. Both are standard-capacity for restricted states, and they use a single-stack design to keep the grip thin.
Is the RM1S legal in California or New York?
With a 10-round capacity, it ships compliant for most states with magazine restrictions. Check your local laws—the RM1S is not currently on the CA roster as of this writing, so verify before ordering if you’re in a roster state.
Can I use a suppressor with the 3.6-inch barrel?
The barrel is not threaded, so direct suppressor mounting isn’t possible. You would need an aftermarket threaded barrel or an adapter, but that voids the factory warranty. This model is designed for unsuppressed carry.
What holsters fit the RM1S?
Since the RM1S is a newer model, dedicated holster options are limited. Look for universal fit holsters or brands that offer custom molding for compact 9mm slides. We recommend checking with your holster maker before purchase.
Why Buy from Us
- ✓ Nationwide delivery (all 50 states)
- ✓ Ships 1-2 business days
- ✓ 30-day returns
- ✓ Secure checkout
Last updated: April 2026
According to NSSF data, over 40% of new handgun buyers in 2025 chose an optics-ready model. The RM1S puts you in that category without breaking the bank.
Shop more: Semi Auto Handguns | Concealed Carry Pistols | ROST MARTIN
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