Calculated Kinetics DOGTAG Optic Plate Shield RMSc/Holosun K Footprint Fits S&W M&P 2.0 Anodized Finish Black. The DOGTAG also reduces the amount of space between the optic and the slide securing the optic to prevent any movement and removing the possibility of the red dot shifting off zero. Finally the deflection table also doubles as an action point in the event of single hand operation (say in the event of an injury) the table can be used to perform the action versus the optic and preventing damage to the optic. Specifications for Calculated Kinetics DOGTAG Adapter Plate: Manufacturer: Calculated Kinetics Fabric/Material: 7075 Aluminum Color: Black Finish: Anodized Package Contents: Calculated Kinetics DOGTAG Adapter Plate M4 X 13MM Oval Head Screws What firearm models does the manufacturer say Calculated Kinetics DOGTAG Adapter Plate is compatible with? The manufacturer suggests that Calculated Kinetics DOGTAG Adapter Plate is compatible with SIG Sauer P320 SIG Sauer P211-GTO Canik METE Canik TTI Combat Glock 19 Gen 6 Glock 45 Gen 6 Glock 17 Gen 6 Glock 49 Gen 6 Walther PDP 2.0 STI International Staccato HD Springfield Armory 1911 DS Prodigy Smith & Wesson M&P M2.0