Some dremel work is required. It is basic cutting/grinding down a couple rivets to remove the factory trigger guard. Once that is off, you just pull out the FCG and the rest is replacement parts that drop in.
If you want to run milsurp AK mags you will have to drill and thread for a bullet guide and grind the mag latch down some.
My 7.62 has gone through a few variations....starting with the bolt on tapco stock and pistol grip w/o moving FCG to what it is now.
Thanks for the FYI about my PM folder.