The RMSc Mounting Standard for Handguns

The RMSc Mounting Standard for Handguns

Established by Shield Sights, the RMSc (also known as RMS/SMS) has become the preferred choice for mounting optics on slimline and compact handguns, especially those used for concealed carry. 

The Atibal SRD/STD-Micro (RMSc) is the newest red dot compatible with the RMSc footprint.  Click here for

What is the RMSc?

The RMSc Mounting Standard uses a specific pattern with two screw holes and four corner sockets to attach recoil lugs or pins. This setup is similar to the Noblex/Docter pattern but has wider and closer screw holes, making it unique.

Versatile Compatibility

This mounting pattern supports two types of optics:

  • Micro Dot Sights: Measuring about 40mm in length.
  • Larger Optics like Leupold DeltaPoint Pro: Measuring up to 46mm in length. These are designed for larger handguns, including double stack and full-size models.

RMSc Conversion Plates

With more RMSc dots hitting the market, finding a way to convert the RMSc footprint to a standard red dot footprint can be tough. That's where we come in! Our RMSc to ACRO conversion plate is here to help.

Just replace the RMSc cut on your slide with our Atibal conversion plate. It's simple and effective.

Here is the link to purchase the conversion plate: ACRO to RMSc ADAPTER PLATE – Atibal Optics (atibal-optics.com)

Practical Considerations

One important thing to note is that while RMSc optics can fit on Leupold footprints and mounting plates, they may not make full contact with the slide if they are shorter or slimmer. In these cases, it's best to use optics of a similar size to ensure a proper fit.

Now you know the basics of the RMSc Mounting Standard and why it's a popular choice for firearm owners looking to enhance their compact handguns with quality optics.

The following pistols and revolvers use the RMSc Mounting Standard for micro dot sights. Please note, this list is not exhaustive and is updated regularly.

 

 

 

Compatible List of RMSc Handguns

** Some of these handguns need factory mounting plates, adapters, or pins.

 

Archon Firearms

Type B OR/OSR
Type D OR/OSR

 

Arex Defense

Delta Gen.2 **
Zero 1 Tactical Compact **
Zero 1 Tactical **
 

Avidity Arms

PD10

 

Beretta

APX A1 Carry **
80X Cheetah **

 

Bersa

BP9CC OR

 

Canik

Mete MC9
Mete SF
Mete SFT
Mete SFT Pro
Mete SFx
TP9 Elite SC **
TP9SFx **
TTI Combat **
SFx Rival **

 

CZ-USA

P-10 S OR **
P-10 C OR **
P-10 F OR **
Shadow 2 Compact OR **
Shadow 2 OR **

 

Dan Wesson

Specialist Black Optics Ready **

 

Daniel Defense

H9 **

 

FN America

Reflex MRD

 

Glock

43X MOS
48 MOS

 

Girsan

Witness2311

 

IWI US

Masada Slim

 

Kimber

R7 Mako OR / Tactical
KDS9c

 

Langdon Tactical

Beretta Tomcat RDO

 

Mossberg

MC2sc Optic Ready

 

Palmetto State Armory

5.7 Rock Optics Ready
Dagger Micro

 

Rock Island Armory

STK100

 

Rost Martin

RM1C **

 

Ruger

MAX-9
5.7 OR

 

SAR USA

SAR9 Subcompact Gen2
SAR9 Compact Gen3
SAR9 Gen3
SAR9 Sport Gen3
SAR9 SOCOM

 

SCCY

CPX-1 / 2 / 3 / 4 RDR
DVG-1 RDR

 

Shadow Systems

CR920 Combat / Elite
CR920P

 

SIG Sauer

P322 / Comp
P365-380
P365 Optic Ready
P365X
P365XL
P365-XMACRO / Comp
P365-AXG Legion

 

Smith & Wesson

M&P 22 Magnum
Performance Center M&P Shield M2.0 OR
M&P Shield Plus OR
Equalizer

 

Springfield Armory

Hellcat OSP
Hellcat RDP
Hellcat Pro
XD-S Mod.2 OSP
Echelon **
1911 DS Prodigy **

 

Staccato

Staccato CS **
Staccato C2 **
Staccato C **
Staccato P **
Staccato XC **
Staccato XL **

 

Stoeger

STR-9MC

 

Taurus

TX 22 Compact
GX4 TORO
GX4XL
GX4 Carry TORO
Defender 856 TORO
327 TORO
605 TORO
Judge TORO
Magnum Judge TORO
 

Tisas USA

Carry Double Stack
Duty Double Stack
Night Stalker Double Stack SF

 

Walther

WMP **
PDP Compact**
PDP Full Size **
PDP Pro SD Compact **
PDP Pro SD Full Size **
Q4 SF OR **
Q5 Match SF **