For those who own a G21, how accurate is it for you? I'm trying to find out what the range in accuracy tends to be for those who own a G21 with the factory barrel, and shooting commercially available ammo. I've heard this gun is more accurate that many other Glocks, and I don't know why that might be, so I thought I'd toss it out to hear from owners what kind of groups they tend to get. Thanks so much. Wanna kill these ads? We can help!