Sig [P220, P225, P226, P227, P229, P320] red dot mount | type A [RMSc, DPP, Docter footprint] Springfield XDS The Holosun 507C X2 is

The Holosun 507C X2 is built to the Trijicon RMR footprint

Machined weight that bolts to the frame dust cover

and reduces hot spots over long sessions

compatible with any red dot sight built to the Docter footprint — whatever the optic's brand

Quick-detach rail clamp – clamps onto any Weaver or Picatinny rail and removes without tools

Sig [P220, P225, P226, P227, P229, P320] red dot mount | type A [RMSc, DPP, Docter footprint] Springfield XDS The Holosun 507C X2 isAluminium red dot mount for the standard (non cut) Sig P220, Sig P225, Sig P226, Sig P227 models, compatible with any red dot sight built to the Shield RMSc, Leupold DPP or Docter 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 & Docter footprints accepts any red dot