Calculated Kinetics Glock MOS Dogtag Optic Plate Holosun 509T Law Enforcement Black. 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 Glock MOS Dogtag Optic Plate: Manufacturer: Calculated Kinetics Red Dot Sights-Footprint: Holosun 509T Optic Cut: Holosun HE509T Fabric/Material: 6061 Aluminum Color: Black Gun Model: Glock 17 MOS Glock 34 Glock 41 Glock 47 Glock 35 Glock 45 Glock 22 Glock 23 Glock 19 Fit: Holosun 509T HE509T X2 Gun Type: Pistol Finish: Hard Anodized Gun Make: Glock Features of Calculated Kinetics Glock MOS Dogtag Optic Plate Hard anodized aluminum Holosun 509T Footprint These plates fit the Holosun 509T and Glock MOS combination. Not Compatible with GEN 4 Glock 40 Glock 43x Glock 48 MOS or any slide cuts. Package Contents: Calculated Kinetics Glock MOS Dogtag Optic Plate Hardware Torx Bit Vibratite Install Card What firearm models does the manufacturer say Calculated Kinetics Glock MOS Dogtag Optic Plate is compatible with? The manufacturer suggests that Calculated Kinetics Glock MOS Dogtag Optic Plate is compatible with Glock 19 Glock 23 Glock 22 Glock 34 Glock 35 Glock 45 Glock 41 Glock 47 Glock 17 MOSCalculated Kinetics TP9-SCMRMSC: Glock MOS Dogtag Optic Plate Holosun 509T Law Enforcement Black