Holosun 507 Comp [green] Tanfoglio Stock 3 Footprint adapter that converts a

Footprint adapter that converts a Trijicon RMR pattern to the Holosun K-series footprint

no slide milling

Aluminium red dot mount for the standard (non-cut) Smith & Wesson M&P

Aluminium red dot mount for the standard (non-cut) Mossberg MC1 and Mossberg MC2

Forward mass on the frame reduces muzzle rise and keeps the sights on target during rapid strings

Holosun 507 Comp [green] Tanfoglio Stock 3 Footprint adapter that converts aBuilt to the Trijicon RMR footprint, the Holosun 507 Comp drops onto any mount or slide cut shaped to that standard. A Trijicon RMR footprint describes the bolt pattern, not the maker of the optic. Aiming is on a Competition MRS [various green dot circle options]. The reticle pattern is switchable. At a glance Mounting footprint Trijicon RMR pattern Reticle Competition MRS [various green dot circle options] Window size 22. 1 x 27. 9 mm [0. 87 x 1. 1"]