You'll be surprised how well some designs have been thought out... Even seen direct detonation on a person with no significant impact (except for maybe a small bruise from the round hitting the body). Take a look for yourself
, comrades back in the Motherland use it for everything: RPG's, under barrels, even mines (never seen them, but heard stories).
Oh, and of course this isn't for public games, more like something to add to the "cool" factor of having a GP-25, somewhere out in some forest/field.
Shame that any BB-filled TAG INN are not allowed anymore...