HK PSG1 trigger group in MP5 question
I know there was a "sniper/DM" variant of the MP5SD back in the day and I have a semiauto 94 that is about to be remade as an SD. I know that the PSG-1 trigger group will work in the 94/MP5 with the 9mm ejector and I recently picked up a PSG-1 trigger group for a steal.
The issue is the 308 hammer spring is hell to cock in the little rifle. I know the PSG-1 hammer has a 2stage spring to it, but I have no understanding past that. Can the hammer spring be replaced with a 9mm one to make cocking it a little easier?
If so will this mess up the trigger pull?