Gunsmiths do trigger works on AR 15 and AK 47 in IE area.

[duc71]

Anyone knows gunsmiths do trigger works on AR 15 and AK 47 in IE area? Thanks in advance.

[ar15barrels]

I do trigger work while you wait on a scheduled shop visit.
AR-15 stock trigger parts are case hardened so it's generally against best-practices to re-work them as you will cut through the hard skin and the modified stock parts will not have a long safe life.
The same is likely true of AK trigger parts.
The solution is to order replacement trigger parts of better quality and install them.
Gains can be made with stock parts through burnishing/polishing and spring adjustments/changes and travel reductions as long as the hard skin of the part is not removed.