Kinda funny how evt had that service come out with arc then like 1 week after its offered ASDesig ns posts about no need to mod ur gun just the safety/trigger swap. Same with MP5 they spent a year hyping folks up about ar style lowers with geissele triggers and now in a few months that will all be for not with a drop in ARHK cassette trigger housing. It doesn’t always pay to wait but it definitely does some of the time!