Hi Just bought a friend's g21. Haven't shot it yet. Will be taking it out to the range after it's Kali-imposed quarantine period is over. Never really wanted a Glock, didn't even know what model I agreed to buy until the day before I paid for it, but the price was right, the money helped him. I'm glad it turned out to be the .45acp. I already have two 9mm's (S&W 915 & Ruger Blackhawk), so I was just thinking about using it for a trade gun if it was a g17/19. But I don't know much about Glocks, or it. I am thinking about getting into a 3-gun Bulls-eye league. Are Glocks usable in competition? I reload. there is some debate about if you can reload brass shot from a stock barrel. Is this true? Do I need to consider an aftermarket one? Any other insights? Thanks!