I have done a few searches in forum and out but I cannot find out how to put my currently equipped weapon away, have also tried hitting every key on my k/b.
From an rpg pov (granted a supremely low priority in this game) it nice not to menace your friends by poking them in the chest with your Exterminator, and I aslo I read you run faster with weapon sheathed.
NVM i found it Hold R, don't tap it
tap is reload.