Is there any chance the Red-9 model present in the DayZ game files could be detached from the 10 round clip? Due to the clip being displayed sticking out of the top of the pistol, it is not possible to "fake" the pistol into the game with a simple config mod. If the clip was detached (since the animation is not there for it anyway) a small config mod could be used to fake a Red-9 using any functional pistol as a parent.
Either this or, you know, add the Red-9 into the game all proper like!