Re: Swapping Weapons
Stocks (both standard and sniper) increases weapon swap speed and ADS speed.
LMGs and Snipers take the longest to swap to/from.
It takes longer swapping away from a weapon than swapping to one (So going from pistol to LMG is much faster than going from LMG to pistol).
If you use LMGs, you probably want at least a blue stock on it. If you don't like the slow weapon swap time, use SMGs/pistols/shotguns instead.