The action is factory. The trigger is a Rifle Basix set to 1 lb. The work was done by me. I have built several Savage or Stevens based rifles. As you should know since there has only been 40 rounds through the rifle, true accuracy capability has not been reached. It did shoot less than 1/2 inch groups with 139 grain Lapuas. As stated before it is a like new rifle built with the listed parts and shoots well. I did this for an article so people could see they too could buid a long distance rifle themselves.