RMS-to-RMR Adapter (Red Dot Adapter Plate)

SAS Tactical Customs

RMS2RMR

Regular price $100.00 Sale

Fits slides cut for the Shield RMSc (Holosun-K) footprint. This includes many 1911 and 2011 pistols including Tisas, SAR9, LFA Apollo, Alpha Fox, etc.

Measure you slide cutout depth and select the version with the appropriate depth. Versions available to accommodate slide cutouts depths of 0.180", 0.200", 0.225", and 0.245".

Select the appropriate adapter mounting screw option based on your slide. M4 screws are the OEM for RMS optics, but some slides are threaded for 6-32, M3, or even 4-40. Most slides use M4 screws, but some like SAR9 slides may use 6-32, Tisas slides are normally M3. Please verify or contact us for help.

*Adapters may take up to 1-2 weeks to ship depending on on-hand inventory at the time. Adapters are always in production and available for order.

Fits these slide cutouts:

Shield RMS/RMSc
Holosun 407k/507k/EPS
JPoint
Sig RomeoZERO, RomeoZEROElite

Allows mounting of these optics:

Trijicon RMR
Trijicon SRO
Holosun 407c/507c/508t/507Comp
Other "RMR" compatible optics

*Adapters may take up to 1-2 weeks to produce and ship.

*Cancellation/refund policy

*Although machined to tight tolerances, minor fitting may be required in rare instances. Feel free to contact us prior to attempting any modification to your slide or adapter plate.

*We are not responsible for loses in shipping, the courier is. Please consider shipping insurance available by clicking here.

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Amazing quality. Fits perfect.

Glad I found SAS Tactical adapers.
Got this for the gen 1 Apollo 11 from Live Free Armory. Once I got this plate I never had the optic loosen again, had come loose 4 or 5 times by then.
I finished 2025 and a lot of 2026 with rock solid reliability. I would guess around 8,000-9,000 on this plate so far. I don't exactly remember round count when I found the SAS Tactical site.

I am back here to get another plate for a new pistol.

This thing worked fantastically

This thing worked fantastically. I still needed a 1 degree shim to get the dot to work correctly, but it is my understanding that's the dot's fault and not the plate. Plate is precision fit and works very well. I got the .200 for the Bersa M2XI in case anyone is wondering.

This fits flawlessly on the Mossberg 590S with the optic cut

This fits flawlessly on the Mossberg 590S with the optic cut.

Exactly what i wanted

Fits perfect on my Tisas raider, extremely happy with it.

The fit and finish wa every good

The fit and finish wa every good. I put this on my Gen 1 Alpha Foxtrot Romulus. I m using the Holosun 507comp. The install and fitment of the optics was great.

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RMS-to-RMR Adapter (Red Dot Adapter Plate)

Customer Reviews