I just got this classic Vortex red dot for my Sig Sauer P365X Macro Comp, and I'm very happy with the purchase.
Vortex provides so many mounting options for popular CC pistols, complete with extra screws, all with pre-treated loctite threads.
...Including for my Sig P365X Macro Comp.
Included is this great little tool - useful for removing the plate from the Sig, attaching the Vortex Micro Defender red dot, removing /installing the battery plate, and adjusting the up/down/right/left of the red dot itself.
First, remove the Picatinny rail mount that's pre-installed, out of the box.
Then, remove the factory plate from the Sig, using the included Vortex tool.
After securing the red dot, unscrew the battery plate and insert the included battery.
Use the included tool to adjust up/down, right/left red dot to overlay on the BU iron sights and get things dialed in.
And enjoy this sweet red dot for your concealed carry pistol. We the People!