Monstrum Nitro+ | Pistol Red Dot with Integrated Rear Sight, 3 MOA Dot, Shake Awake, and Screw Kit | RMSc Footprint

Decent cheap one I got off Amazon. Has held up very well, seems to hold its zero fine. Have had it on there for about 3 months https://a.co/d/0gWz3cwl I have an Osight dot as well, but I haven’t had the chance to swap it over yet.