Modular Red Dot Mount for Sig Sauer Civilian Version P320-M17, M18, X-5 Legion Pistol
OuterImpact is excited to introduce the Modular Red Dot Mount/Adapter for the civilian version of the Sig Sauer P320-M17, M18, X-5 Legion. This product will allow the shooter to utilize a variety of red dot sights on their Sig Sauer P320-M17, M18, X-5 Legion 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 Mount/Adapter for Sig Sauer Civilian P320-M17, M18, X-5 Legion 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 [email protected].
Compatible Guns:
- Sig Sauer Civilian P320-M17 (Please refer to gallery image above for required footprint dimensions)
- Civilian M18 (Please refer to gallery image above for required footprint dimensions)
- X-5 Legion (Please refer to gallery image above for required footprint dimensions)
- X-Compact (Please refer to gallery image above for required footprint dimensions)
- X-Carry IF IT HAS A LOADED CHAMBER INDICATOR. IF NOT PLEASE SEE THE X5 ADAPTER HERE: Sig Sauer P320-X5 Pistol Red Dot Adapter/Mount M.R.A.
Not compatible with the Military M17/M18 versions
Compatible Red Dot Sights (Mounting Screws INCLUDED):
- Trijicon RMR/SRO – some weapons may experience ejection issues using the SRO
- Docter
- 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
- CMORE RTS & STS
- Shield RMS – requires a purchase of these screws
- Holosun – 507 ”C”/407 ”C” V1 versions – requires a purchase of 6-40 Screws For Holosun V1 Red Dot
- Holosun – 507 ”C”/407 ”C” V2 and X2 versions – screws included in OuterImpact Screw Pack
- Holosun – 507 ”K”/407 ”K” models require the Micro adapter. Micro adapters are not available for all firearms
- Holosun – 508 ”T”
- Holosun – 507 Comp
- UTG Reflex Micro Dot
- TruGlo – Tru-Tec
- Sig – Romeo 3 / Romeo 3 Max / Romeo 3 XL
- Crimson Trace – CTS-1250 / CTS-1550 / CT RAD / CT RAD Micro
- Springfield Hex – Dragonfly – must also use OEM provided spacer plate
- Bushnell – RXS-100 and 250
- Kahles – Helia RD
- Creative XP – Glass Eagle – requires a purchase of M3–0.5 x 10MM screws
- Noblex – NV G
- SOUSA DARC Micro – requires a purchase of M4 x 8mm Socket Head screws
- Sightmark – Mini Shot
- Athlon – Midas EDC
- Vector Optics – Frenzy X
Mounting Hardware:
- (2) 4-48 Socket Head Cap Screws
- (2) Sight alignment pins
- (2) M3 x 8mm Flat Head Screws
- (2) M3 x 9mm Flat Head Screw
- (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:
P320-M17 Adapter to Plate Installation Instructions
Marc Sussman (verified owner) –
NEED RETURN LABEL. . Does not fit ,unable to mount on model
David Hanson (verified owner) –
Installation on my M18 was relatively easy. After firing 400-500 rounds, my Holosun red dot flew off the mount. At first I thought it was loose mounting screws, but after examination by a gun smith, it was determined that the mounting plate failed, as the two mounting screw hole threads where the optic attaches to stripped under the pressure. Luckily my optic is fine. I’m now determining if I should purchase another one of these mounts or go with a different brand.
Peter Herrmann (store manager) –
Hi David,
That failure is not common so we would like to get that piece back and cover it under warranty. We will email you instructions. 400-500 rounds is not a high enough round count to cause this failure so we would suspect the screws had a problem and damaged the threads, but we will be able to figure that out at the shop. Our dealers will run 6000-9000 rounds on range guns before seeing any degradation of this type. Everything is covered under the warranty so no need to purchase another one. Reach us at [email protected] if you have more questions. Thanks-