Hey JQR, with the 1377, just open up the pistol grip (Right side) and remove the big spring (Trigger sear spring) and squish it down abit....about 2mm and the trigger pull would be lighter. I did that.....and what a huge improvement. IMPORTANT: PUT THE SAFETY "OFF SAFE" BEFORE REMOVING THE PLATE THAT COVERS THE TRIGGER ASSEMBLY, THERE'S A VERY SMALL BALL BEARING THAT'S UNDER PRESSURE FROM A VERY SMALL SPRING INSIDE.....IF THAT BALL BEARING POPS OUT, YOU'LL HAVE A HARD TIME PUTTING IT BACK IN......THAT IS IF YOU CAN FIND THAT FLYING BALL BEARING!!!!! Go check out Charlie Da Tuna's webpage......he have an excellent description on how to remove the sear of the 1377 (He used to make a better sear for the 1377). Btw, I didn't even need to remove that plate.....I just pressed and leaned the big spring sideways and it popped out.....after squishing it abit (And lengthening it abit because I over squeezed it (Sear would not engage)....I put it back in.