Is It Possible To

Put another gun's mag into a weapon. For instance the MK17 SD round, 7.62. This is silenced and does 8k blood per hit (the only decent SD round). When you add the MK17 CCO SD it works but you don't see the gun and it's just not fun not being able to aim down the sights.

The Mk17 cco sd is not a dayz "legit" weapon which is why you probably cant see it and why you cant look down the sights but i could be wrong of course

None that I know of, but there's probably a way