1. The recuperator. How can I be sure that I need to trim the receiver for it to fit? Is it as simple as placing in the receiver and testing, or is there a process to verify it will fit? My receiver has that tab on the back that sticks up on the LH side, and I think I need to trim this. I looked till I was crosseyed and I can't find any pics that show this area that has been trimmed for the recuperator.
2. G3 trigger parts. I played around with my G3 trigger housing all night tonight and I think this would work. The HK housing is wider than the MG grip stick, but there is enough meat on the parts that they could be thinned out. I think they would be thinned out and could be fitted into the grip stick. It would take some work but I think it is possible... no?