Just picked up a STI Lawman, my first 1911. The one piece FLGR was a pain to dissemble. I want to try out a GI plug but not sure what parts I need. Would someone please recommend some parts to me? Will they be drop in or will I need to get them fitted? Update: Ran into some issues with the parts I ordered, please see post #18. Wanna kill these ads? We can help!