OWB buys you two things.If I decide to carry with this gun, should I only consider OWB due to the gun size? Or is it possible to carry IWB for a full size gun like this and not be totally uncomfortable?
The magazines for the G21 are huge and everything gets tight IWB at the waistline. Losing some weight would help
Using the Glock family as an example, from the G26 to G19 to G17 to G34 to G17L, they are all the same thickness and would all pretty much have the same comfort IWB. The difference is you could probably carry the G26 OWB in something like the Mitch Rosen Upper Limit https://mitchrosen.com/products/holsters/belt-holsters/ because there is very little that would extend below the bottom of the belt, and the slide is so short, there would probably not be an issue with drawing from such a high riding, straight drop holster.
Conversely, in an OWB holster a G17 or G34 would extend below the bottom of the belt quite a bit and require a much longer cover garment. IWB, those bigger guns could be conceal carried much easier.
Paddle holsters usually aren't very good concealment holsters ( https://www.vedderholsters.com/prodraw/ ), and they really aren't designed to be. They are geared towards LE, where there is a need to put on and take off the holster frequently, and competition shooters who may need to position a holster along the belt line regardless of where a belt loop may fall. Most are pretty good for accessing the gun as they usually sit away from the body and many are straight drop holsters. However, concealment is not their strong suit.I just got a Vedder paddle, OWB holster for my ‘tighter’ pants(like most of them now, pandemic bulge-)...and since it rides on the belt, sits pretty high. But could easily carry G26 and can easily carry G48...length and width not an issue, IWB. With proper belt and holster and over garment...easy to carry ‘full sized’ HG, imho.
I'm sure you can. Many do. I hate IWB carry. It does not agree with my nerves at all. I can sometimes carry a Shield 45 IWB when wearing my stretchy jeans, but I'm more of a pocket pistol kind of guy.
For those of you having trouble with IWB, this cheap holster is strangely comfortable. They sell on eBay under the name “Fox.” It’s fake leather and kydex. I’ve tried a few big name brands that don’t come close in the comfort department. Of course you’ll need to trim and adjust it to fit you. I painted the rivets and screws because they’ll corrode, stainless would be better but more expensive. Glock 17 in these pictures View attachment 958256View attachment 958257