I bought that plate too off Amazon. Dovetail is how your mounting the plate to your slide so like slide off your back sight then look how it’s angled that’s a dovetail and your slide being stock is how that has to be done unless you want to send it in to be rmr cut and in the states that’s like 200 alone I found the plate again and here are some options (sorry they’re all on Amazon) https://www.amazon.com/Burris-FastFire/dp/B09HHSFKG3

https://www.amazon.com/Ade-Advanced-Optics-RD3-009-1-Sights/dp/B00OJHL612

https://www.amazon.com/Vortex-Optics-Viper-Red-Sight/dp/B0C1Z8GN1S

https://www.amazon.com/Sightmark-Mini-M-Spec-Reflex-Sight/dp/B0C1MFL41S