[Min]

To lighten trigger pull? I have my Springfield Armory Mil-spec disassembled. Which leaf to press (or pull) to lighten the stock trigger pull? Thanks.

[jarhead]

My coffee is still kicking in... but I believe the left finger control the trigger return pressure and the middle finger controls the sear pressure.

To really adjust your trigger pull, among other things you will need to properly adjust both fingers...

[HSMITH]

BE CAREFUL!!!!!!! The sear can and will bounce if you get it too light leading to hammer follow in the best case and full auto in the worst case. You cannot control a full auto 1911, round #3 will likely be over the backstop unless shooting marshmellow loads. It is NOT a good idea to play with the springs in an attempt to lower trigger pull. You can do it right the first time, or the second time, or the third time.........

[C.R.Sam]

Playin with fire...
In a refinery.

Sam

[Kruzr]

Left finger is on the sear, middle one on the trigger bow/disconnector. You can get a 4-finger sear spring from Clark Custom (or Brownells) that separates the middle finger into two. But, as others have said, be very careful here or you'll end up with the hammer following the slide.