No matter what pistol or holster I use even the starting M9, it clips through the holster while in low cover. As I said this affects every single holster in the game apart from a few so it would be easier to mention the unaffected ones namely: Awe Thigh Mag Holster, Compact Holster Pouch, Modular Holster and the Morar Holster System variants. Of course this isn't gamebraking by any means, but considering the amount of time you spent in cover in this game, I'm surprised this hasn't been adressed let alone fixed already.
Here are a few examples some more, some less severe...