This section is for HK stuff. Period.

It is not for ammo.
It is not for AR style uppers unless it is an actual HK AR style upper.
It is not for flogging your own auction.
It is not for survival gear.
It is not for cars, trucks and SUV's.
Clone stuff is *generally* okay as long as we are talking about a clone HK-style weapon (not a clone AR upper).

If in doubt, refer to the first line. If you are still in doubt, do not post it.