My next gun is gunna be another fullsize Glock. I really love 21s, size, feel, caliber, it's perfect for me! I can shoot a 17 just fine, and they feel good in my hand too. The only reason I'm having second thoughts on a .45 is because if SHTF, how much harder will it be to find .45 than 9mm which is NATO? I'm trying to stick to all NATO calibers, but I really want another 21!