im quite fond of my M9A1 as well. Once you get it down man they can shoot. Of course the designated target handguns and custom builds are all a wash for how well you shoot what you can create.Ruger Pcc You didn't specify "pistol".
If you did, it would be my M9A3.
I also own the MK-5 and it shoots great. I shoot the micro even better at close range.I got a chance to shoot a wide variety of handguns when my department allowed officers to purchase them in place of the issued revolvers. The range had examples that officers could try out to see what worked for them.
For me the most accurate 9mm was the SIG 226 X-Five. A very close rival was the SIG 210
Here's a good one: