LowPro™ Low-Profile RMSc Red Dot Mount for Ruger Mark III & IV

• At only 2mm (0.08") thick, this is the lowest profile mount on the market and is less than half the thickness of alternative mounting plate options
• Made in the USA out of durable and lightweight PA12 nylon
• Alignment pins keep red dot secure and zeroed

• (1) LowPro™ RMSc mounting plate
• (2) #6-48 x 1/4" flat head screws (T10 torx)
• (2) #6-32 x 10mm flat head screws (T10 torx)
• (1) Installation instructions card

Plan to use this mount with a SIG Sauer red dot?
If so, you will need to order these longer screws.

Compatible firearms
Compatible with all Ruger Mark III & IV pistols with threaded holes on top of the upper except for the Mark IV 22/45 Tactical Silencer Shop Exclusive (SSH) models (40179, 40181, 40182, 40186, & 40193). Click here for the LowPro mount that is compatible with the Mark IV 22/45 Tactical Silencer Shop Exclusive (SSH) models.

Also compatible with TacSol Pac-Lite uppers, however, please note that TacSol Pac-Lite uppers have #6-40 threaded holes and Ruger uppers have #6-48 threaded holes. Therefore, you must order these screws if you plan to attach a LowPro mount to a TacSol Pac-Lite upper.

Compatible red dots
Compatible with any red dot that uses an RMSc or Holosun K footprint including, but not limited to:

ADE Nuwa
ADE Nuwa Pro
ADE Spike
ADE SPIKE
Arken HALO MSR
Bushnell RXC-200
Bushnell RXU-200
C-MORE CRC
C-MORE CRC2
C&H Precision EDC
C&H Precision EDC Enclosed
C&H Precision HNT-R Max
C&H Precision Max
Crimson Trace CT RAD Micro
Crimson Trace CT RAD Micro Pro
Crimson Trace CTS-1550
EOTECH EFLX CE
Firefield Ironclad Mini Reflex F3
Gideon Optics Judge II
Gideon Optics Judge XL
Gideon Optics Valor Mini
GPO Spectra Pistol Dot
Holosun 407K X2
Holosun 507K X2
Holosun EPS Carry
Holosun EPS Carry MRS
Holosun EPS Core
JP Enterprises JPoint
JPoint Micro Reflex Sight
Meprolight MPO-S
Osight K
Osight S
Osight SE
Primary Arms Classic Series 21mm
Riton 2 Tactix MPRD 2
Riton 3 Tactix MPRD XL
Shield AMS
Shield RMS
Shield RMS2
Shield RMSc
Shield RMSd
Shield RMSw
Shield RMSx
Shield Sights AMS
Shield Sights AMSc
Shield Sights AMSx
Shield Sights RMSsc
Shield SMS
Shield SMS2
Shield SMSc
SIG Sauer ROMEO-RS Compact
SIG Sauer ROMEO-X COMPACT
SIG Sauer ROMEO-X Enclosed Compact
SIG Sauer ROMEOZero
SIG Sauer ROMEOZero ELITE
Sightmark Mini Shot A-Spec M3
Steiner MPS-C
Swampfox Sentinel
Swampfox Sentinel II
UTG OP3 Mini Micro for RMSc
Vortex Defender-CCW
Vortex Defender-CCW Enclosed

LowPro RMSc Mount Installation Card

LowPro Mounts Installation Video

Frequently Asked Questions