LOL, no kidding! Dang I would love to shoot a 30 round mag through a Glock 18....just once!
I’ve done it. There was a range in Central Texas where you could rent one. Their mags, their ammo.
Even with my gorilla-sized hands and some aggressive porting on the barrel... It was a bit tough to stay on the paper.
But yes, it was a lot of fun and I highly recommend it.