Trijicon 700817 RMR Dual Defense Cerakote Black 1x 3.25 MOA Red Dot Reticle Fits Sig Sauer M17/18

The Trijicon RMR Dual Defense kit brings together two proven tools for shooters who carry a Sig Sauer M17 or M18: a rugged red dot sight paired with optic-height iron sights that work together, not against each other. If you're running a suppressor, training for competition, or just want a modern sight picture on your duty or self-defense pistol, this kit cuts through the guesswork. The RMR's 3.25 MOA red dot reticle is compact enough for precision work at distance but fast to pick up in dynamic situations, and the co-witnessed sights let you see your irons through the optic lens—giving you both speed and a true backup if you ever need it.

Built on Trijicon's reputation for dependability, the RMR runs on the principle that good optics should adapt to you, not the other way around. The red dot automatically adjusts its brightness to match ambient light, so you're not fiddling with manual brightness settings in changing conditions. The Cerakote Black finish resists wear and corrosion—important if your pistol sees regular use, whether at the range, in competition, or for carry. Windage and elevation adjustments are dialed in 1 MOA increments, giving you the precision to dial in exactly where you need to be.

This kit assumes you know what optic-height sights mean and why they matter when running a pistol-mounted red dot. If you're new to the setup, the short version: standard sights sit too low to use if your red dot goes down. These sights rise to the same plane as the RMR, so you can actually aim through the optic. It's a mature approach to backup iron sights and a solid choice for anyone serious about their M17 or M18.

Key Features

• RMR red dot with 3.25 MOA reticle—compact and fast-acquiring
• Automatic brightness adjustment to ambient lighting conditions
• Co-witnessed optic-height iron sights for true backup aiming
• 1 MOA windage and elevation adjustments for precision zeroing
• Waterproof to 20 meters for reliability in wet conditions
• Cerakote Black finish for corrosion and wear resistance
• Purpose-built mounting for Sig Sauer M17/M18 platforms

Specifications

Frequently Asked Questions

Does this kit include iron sights that work with the red dot?

Yes. The kit includes suppressor/optic-height iron sights engineered so you can see them through the red dot lens. They serve as co-witnessed backup sights and help you acquire the red dot faster in shooting situations.

Will the RMR work on any Sig pistol, or just the M17/M18?

This kit is designed specifically for Sig Sauer M17 and M18 platforms.

How does the automatic brightness adjustment work?

The red dot automatically adjusts its brightness to match ambient lighting conditions. The system cycles through a full brightness adjustment every 16.5 hours, so you don't have to manually fiddle with settings in changing light.

Is the RMR waterproof?

Yes, the RMR is waterproof to 20 meters, making it reliable in wet conditions and during submersion.