Got a question to those with experience, I'm looking at a lower reciever with markings to replace my naked lower. Since I've never disassembled the trigger pack. How hard is it to strip the guts out and transfer them to the new lower? Does the trigger pack come out in one piece, or do you have to rebuild the sear, sear spring, hammer extra and then put them back in. I'd hate to spend the money, if it is a very challenging endevour to change out lowers.
Also, does anyone have the LAT roller bearing set like LAT-WP-LAT0001-AG on airsoftglobal.com? Does it improve function, and where can I find one in stock?