Modular Red Dot Adapter – MRA for Sig Sauer P320-X5


Are you looking for an adapter to mount a multitude of Red Dot sights to your Sig Sauer P320-X5 pistol? Look no further… The OuterImpact Red Dot Adapter/Mount answers the question! Micro adapter not available for this firearm.

23 in stock

SKU: OTL-RDM-SIG04a Categories: , , , Tags: , , , , , , , , ,


Modular Red Dot Adapter for Sig Sauer P320-X5 Pistol

OuterImpact is excited to introduce the Modular Red Dot Adapter for Sig Sauer P320-X5. This product will allow the shooter to utilize a variety of red dot sights on their Sig Sauer P320-X5 with one adapter. We at OuterImpact have gone to great lengths to assure that the fit and finish of this system are top-notch.

We have been excited about the increased popularity of the Mini Red Dots on pistol platforms. Unfortunately, not all of us are ready or wanting to commit to a “custom-cut” slide. This does not appeal for various reasons. Some of which are: the price of modification, effects on the resale of the firearm, ability to “try” different Red Dots, etc.

The OuterImpact Modular Red Dot Adapter for Sig Sauer P320-X5 answers all the above questions. We precision-machined the adapter plate from 7075 aircraft aluminum. Thus, the M.R.A. plate is extremely durable and lightweight. As you know, there are violent forces that take place when a gun is fired. We know that shooters do not want to “worry” about losing zero, because of an inferior mount. This is why we utilize weaver T-10 Torx screws and steel alignment pins to keep everything aligned and in place.

Thank you for your interest in our products. Check out our FAQ for answers to common questions and feel free to contact us at

Compatible Guns:

  • Sig Sauer P320-X5
  • X-Carry IF IT DOES NOT HAVE THE LOADED CHAMBER INDICATOR. Please see our M17 adapter here if your X-Carry has a loaded chamber indicator.



Compatible Red Dot Sights (Mounting Screws INCLUDED):


Mounting Hardware:

  • (2) 4-48 Socket Head Cap Screws
  • (2) Sight alignment pins
  • (2) M3 x 8mm Flat Head Screws
  • (2) M3 x 6mm 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 3/32 Allen Bit

Please follow mounting instructions included with the optic.

Material: Billet 7075-T6 aluminum.
Finish: Black Anodize
Coating: Anodize
Dimensions: Height – .13″ Length – 2.02″ Width – 1.06″
Additional Tools: T-10 Torx driver (not included). Why is my tool NOT included? Click Here
Purchase Tool

US Patent: US D851,196S

Installation Instructions:

MRA Plate Install Video
Burris FastFire II/III Install Video
Trijicon RMR Install Video

P320-X5 Adapter to Plate Installation Instructions

How to Attach the Red Dot to the Adapter Plate

Additional information

Weight 1 oz
Dimensions 8 × 4 × 2 in


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