paintball markers toss only 2 grams of payload, at a maximum of 350 feet per second for outdoor use, and are stepped down to 200 fps for indoor sport where snap encounters at 10 feet or less occur.
the pellets they fire are a dollop of semiliquid paint, in a thin-skinned ball of 68 caliber, over two-thirds of an inch across.
they are the least lethal projectile weapons I own- and that includes the co2 pistol of BB (17.7) caliber and the wrist slingshot.
since you wear a mask that protects the eyes and ears, about the worst they can do is raise a nasty welt. (usually a 'hot-shot' from one of the shoddy pump-action field guns that can be set to 200 and still toss an occasional 350 as a fluke)
sometimes a breaking shell can scratch up blood on bare skin. no penetration at all- you know you've been hit, but real damage? zip.
'looking' lethal is the sillyness that makes 'assault rifles' evil and a hunting rifle ok- though the former are designed more to wound than kill, and the latter have twice or more range, thrice the accuracy and designed for one-shot kills all the way out to max range.
Varmint rifles can reach out a thousand yards or more and hit inch-and-a-half targets with regularity, while a paintball gun you have to be lucky to hit a 2-foot square at 50 yards one time in 20.
knowledge makes that spyder look like an awkward toy and this model 422 .22 target pistol a quarter it's size a deadly weapon to 50 yards and beyond to anything hand-sized with reasonable skill by the person aiming it.
The problem is too many have been denied that basic knowledge, so they do dumb things out of ignorance, without knowing malice at all.
then they blame inanimate objects for their mistakes. Which is more irrational than doing something dumb in the first place.