Ruger Mark, P85, P97 red dot mount | type S [RMSc, DPP, K-series footprint] Sig P229 The Holosun SCS 320 is

The Holosun SCS 320 is a direct fit for SIG P320 — it seats straight onto the factory optics cut with no adapter plate

Aluminium red dot mount for the standard (non-cut) Ruger Blackhawk

Mounting footprint – Aimpoint Acro pattern

Aluminium magwell for Canik SFx Rival-S

Polymer construction with rubber buttpad — lightweight and weather-resistant

Ruger Mark, P85, P97 red dot mount | type S [RMSc, DPP, K-series footprint] Sig P229 The Holosun SCS 320 isAluminium red dot mount for the standard (non cut) Ruger Mark I, Ruger Mark II, Ruger Mark III, Ruger Mark IV models, compatible with any red dot sight built to the Shield RMSc, Leupold DPP or Holosun K series footprints whatever the optic's brand. It replaces the factory rear sight in the existing dovetail, with no optics cut or slide milling required. The full list of compatible pistols and red dot sights is below. Shield RMSc, Leupold DPP & Holosun