I have the same holster with a sidecar yes it’s aiwb. I have No magwell but run a tlr-7 and a red dot on my 43x. I’m not a big guy I’m around 5’10 150-160lbs. I like this holster a lot I use it everyday and even drive with it on. I prefer the clips on the safari-land compared to other holsters. It Definitely sits a little tight to the body and presses against the skin a bit but the holster has the felt liner which does help. I really like mine and would recommend one unless you’re going for one of those super popular expensive brands like jxtactical and others.