Adjustable Co-Witnessing Red Dot Mount

OuterImpactSKU: OTL-RDM-PCAT02a
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Style: Base Mount + M.R.A. Top Plate
Sale price 2.015 kr

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The Adjustable Co-witnessing Red Dot Mount from Outer Impact allows the shooter to utilize a variety of red dot sights on any rifle with a picatinny rail, as well as allowing the shooter to dictate the height of optic or level of co-witness they prefer, from absolute to lower third and multiple points in between.

The Outer Impact Adjustable Co-Witnessing Red Dot Mount consists of 2 parts:

  • Base Mount
  • Top Plate (3 options available)

The Base Mount and Top Plates can be purchased separately, or in combination for a complete Adjustable Co-Witnessing Red Dot Mount.

Available Top Plates

M.R.A. Modular Red-Dot Adapter for "screw & pin" mounted red-dots with the Trijicon RMR, Docter/Noblex, Shield RMS or CMORE RTS/STS footprints. Covers over 31 confirmed compatible red-dots.
Aimpoint Micro Adapter for red-dots using the Aimpoint Micro mounting standard.
MRO Adapter for red-dots using the Trijicon MRO mounting standard.


See Compatibility Chart at bottom of page for complete list of compatible red-dots.


This adjustable mount takes only a few of minutes to install on any Picatinny rail type and, once zeroed, you can freely adjust the level of the mount and no re-zeroing is required.

OuterImpact has gone to great lengths to assure that the fit and finish of this system are top-notch. The adapter system is precision-machined from 7075 aircraft aluminum and mounting hardware is included in the kit.

Compatibility Chart (list not exhaustive)

M.R.A Trijicon RMR/SRO
Insight MRDS
Eotech MRDS
Leupold Delta Point
Leupold Delta Point Pro
Vortex Razor
Vortex Viper
Vortex Venom
Vortex Defender CCW
Burris Fast Fire 2 & 3 & 4
Shield RMS (screws not included)
Holosun 507 ”C”/407 ”C” V1 versions (screws not included)
Holosun 507 ”C”/407 ”C” V2 and X2 versions (screws included)
Holosun 508 ”T”
UTG Reflex Micro Dot
TruGlo Tru-Tec
Sig Romeo 3, Romeo 3 Max, Romeo 3 XL
Crimson Trace CTS-1250 & CTS-1550
Springfield Hex Dragonfly (must use OEM provided spacer)
Bushnell RXS-100 and 250
Kahles Helia RD
Creative XP Glass Eagle (screws not included)
Noblex NV G
SOUSA DARC Micro (screws not included)
Sightmark – Mini Shot
Aimpoint Micro Actus Core-1 1×20
Actus Core-2 1×20
Aimpoint CompM5
Aimpoint Duty RDS
Aimpoint CompM5b
Aimpoint Micro H-1
Aimpoint Micro H-2
Aimpoint Micro T-1
Aimpoint Micro T-2
Athlon Midas TSR2
Blaser RD 17
Burris Fastfire RD
DI Optical SP1
Holosun 403 models
Holosun 503 models
Holosun 515 models
Holosun 530 models
Kahles Helia RD-C
MAKdot S 1×20
Minox RV1
Primary Arms SLX Advanced Rotary Knob
Primary Arms SLX MD-20
Sightmark Element Mini Solar
Sightmark Wolverine 1×23 CSR
Sightmark Wolverine 1×28 FSR
Sig Sauer Romeo4
Sig Sauer Romeo5
Sig Sauer Romeo-MSR
Swampfox Liberator 1×22
Vector Optics Centurion 1×20
Vector Optics Maverick 1×22
Vector Optics Maverick 1×22 Gen II
Vector Optics Scrapper 1×22
Vector Optics Scrapper 1×25
Vortex Crossfire
Vortex Sparc AR
Vortex Sparc Solar
ZeroTech Thrive
MRO Trijicon MRO
Trijicon MRO Patrol
Burris RT-1X

Mounting Hardware

  • (1) M3 x 8mm Socket Head Cap Screws
  • (2) 6-48 Weaver T-10 Torx Head Screws
  • (2) Sight alignment pins
  • (2) M3 x 8mm Flat Head Screws
  • (2) M3 x 9mm Flat Head Screw
  • (2) M3 x 6mm Torx Flat Head Screws
  • (2) M3 x 6mm Socket Head Cap Screws
  • (2) 6-40 Flat Head Screws – RMR
  • (2) M4 X 10mm Rounded Head Screws

Required Installation Tools

  • Torque Driver
  • Extended shank T-10 Bit

Please follow mounting instructions included with the optic.

Material: Billet 7075-T6 aluminum
Finish: Black Anodize
Coating: Anodize
Dimensions, M.R.A. Top Plate: .600″ x 2.02″ x .1.06″
Dimensions, Aimpoint Micro Top Plate: .678″ x 1.98″ x .945″
Dimensions, MRO Top Plate:
.660″ x 1.98″ x .755″
Additional Tools: T-10 Torx driver (not included)


OuterImpact has established itself as a leading supplier of specialized mounts for optics and red dot sights. Their extensive product range includes mounting plates, red dot adapters, and 0/20 MOA picatinny rails. With OuterImpact's modular red dot adapters (MRA), you have the opportunity to choose from a wide selection of red dot sights and easily interchange them on your firearm using the same mounting plate. OuterImpact's MRA plates are available for the most popular handguns used in competitive shooting. Whether you are a competitive shooter or a hunter, OuterImpact offers solutions that ensure high performance and precision.

View all OuterImpact products

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