it's really tough to explain how to correctly do a m14 trigger job to a chinese trigger group. The hesititation is that guys like me don't want to be responsible when things go south hehehe
the number one thing i find in chinese trigger groups is that first you have to be sure the trigger itself is fully at rest. to check this, lock the hammer back and press down and release, feel drag at the sear? look at the front hammer hook area where it is engaging the sear, with the hammer locked back, push forward on the trigger and use your thumb to manipulate the hammer up and down, observing where the sear is in relation to the hammer...... do you feel it binding? this must be remedied by filing the area of the hammer from front hammer hooks up the inside of the "hammer hook wall" WITHOUT DISTURBING THE HAMMER HOOK SURFACES.. this is critical. An XXfine 1/8" tapered, triangular gun smiths file is the ONLY tool for this job..... this is not a suggestion
performing this procedure is step one in the correct trigger job. establishing a positive 1st stage that ensures the trigger itself is fully at rest prior to altering or polishing any other trigger surfaces.
DO not alter or adjust the front hammer hooks in any way other than a very light polish to remove parkerizing,
polish all bearing and contact points in this manner.
re assemble and check for gritty ness , enure positive first stage and crisp break..... and then we go the the rear hammer hooks and evenly remove minute ammounts of material, keeping the ends square and true..... with each few passes of the stone, #### the trigger and check break. ALL reduction of actual trigger pull is done at the back hooks, tips only.
reduce trigger pull to a minimum of 5 lbs with chinese parts....... and that is not a suggestion
