[e-luder]

Originally Posted by kar120c

As wrote in past posts my G27 suffers of trigger sticking issue but now I found what cause this issue:
The trigger bar wore a groove in the hammer chassis http://s967.photobucket.com/user/vil...ce776.png.html[/
http://imageshack.com/a/img560/8071/dz0r.jpg
If this is a common issue, anyone has found a definitive solution other than sanding every time the worn part?

You shouldn't be sanding that part to begin with.
What you should've done is simply lube it up.

While I understand the reason behind sanding it, it will only create more trouble for you in the future. This includes:
-longer trigger travel (if you don't want this)
-failure for the trigger bar to engage the sear
-trigger over extension

and so on...

Lube it up. That's all you really need.