Just viewed the AGI AR15 Trigger Job video then did a trigger job on my AR it is light and nice and crisp. Anybody else seen this vid?
You shouldn't be changing in angles. Case hardening is probably a lot thinner than .03" deep.How much material are they saying to remove? I assume you have to alter the geometry at least a little with a file or stone.
Those components are case hardened which should be .030 to .060 deep. Remove more than that and you're into the ductile material and you'll start doubling after a couple hundred rounds when the parts wear.
You have to change the sear angle to make a decent amount of difference though. You can only gain so much by polishing. You can probably get around a 5-6lb pull by polishing but you can get much lighter if you change the geometry.You shouldn't be changing in angles. Case hardening is probably a lot thinner than .03" deep.