The 2 pins for the trigger group and hammer go right in with finger pressure as long as everytging is lined up. The trigger guard and bolt catch pins are the 2 i used the channel locks on. Just have to tape em up good so you dont scratch the hell outta your receiver. By far the only tricky part of assembly is the takedown pivot spring and detent.
This post was edited on 2/16 at 10:55 am