I bought a new 4th generation Glock 19 last week. I cleaned and lubed it then took it to the range yesterday -- and everything worked flawlessly! I shot 175 rounds of 115 grain WWB from the three magazines that came with it, plus an older G19 and two 33 round magazines. Brass hit my head twice, but I think that they were ricochets off of the stall wall. I also shot 30 147 grain WWB hollow points without a hitch. I did not use either of the back straps and really liked the feel of the grip, and I love the new mag release. All in all I am very happy with the new G19, and I really want to try out a Gen 4 G26 (my main carry gun is currently a Gen 3 G26).