1. have a CR75 in your gun holster (it had a supressor on it)
2. put it in your hands
3. drop the gun holster
4. pick up a press vest
5. click X in inventory to put CR75 back into inventory
6. CR75 disappears :)
Didn't find it in the gun holster which was on the ground, even when i put it back on me. The gun was nowhere to be found, not in vicinity (i was not in house, but in the airfiled hangar). I was playing on a private server.