Honesty, I own a g36 and have had it for the last 4 years or so, originally for ccw. But after the first year or so it has just collected dust in the safe. Yes its slimmer than other glocks, but not by very much, and that slimmness comes at a price of a six rd mag count. Height and length wise its pretty much the same size as a g19. Sure it has its place, but I have been very seriously pondering a trade-in for the g30, that extra 4 rds for a meer couple milimeters of width sounds pretty tempting to me. Pick em both up and try them on for size, but coming from a 36 owner, Id go for the 30.