u/Altruistic-Form-8251

About a month back I purchased a used m&p 2.0 with just regular irons sights. However I'm not a big fan of the stock irons and would probably replace them but at some point I do want to put an optic in it for my pistol league I'm just curious is it worth it to pay the money to get the slide milled or just buy a new slide. For context I only paid about $300 for the whole pistol and I'm already going to change the trigger to an apex for the flat face and less pull. And also are there any shops that just sell slides?

Anything helps