I was probably the last man in this country under the age of 90 to have never fired a Glock, but today I got a wild hair, and went down to rent one. My choice was the G21. First impressions were, Big gun with rather large handle. The gun sat very weird in my hand, took some getting used to. The trigger pull was strange also, I dont know if I liked it or not, something I could get used to though. Accuracy for me was no problem, I actually did a lot better than I thought I would have. Overall I'd rate it a 6.5 on a scale of 1-10. I can't bash them anymore, and I would feel comfortable with a glock of any caliber on my hip. With some Hogue grips, a match grade barrel, and Novak night sigts that'd be a mighty fine pistol. But I'd still rather have a Sig.