My Colt. This is right after I bought it 2005. I took it to the range and put 200 rounds through it, had two FTF, no FTE. After that it has never malfunctioned, not once. It shoots to point of aim and while the trigger is nothing to write home about, it works fine for combat type training when at the range. I have had a few others before and since, I will keep my Colt. I have one Colt mag and three Wilson Combat, all work just fine. Round count is not much, maybe 3500.