I have used all of these things while playing in Scotland. First of all, the green/black grenades are paint grenades. The smoke grenades are not very good, they only produce smoke for about 30 - 60 seconds. The stun grenades are very loud, and therefore fun to toss at unsuspecting newbs! I was going to bring some of these goodies home from Scotland on my trip home back in July, but the airline, n/m canada customs would never have allowed it. The guy that owns Airsoft Scotland is a friend of mine, so I'll ask him what he can do to get em over here.
Douglas Alexander Maxwell (Known pedophile).