APS build internal specifics

Hi guys
Ive got an APS box going into m4 metal reciever. Because I’m using gen9 mag and mag contact block I ordered the V2 tappet plate which takes the bigger cylinder head nozzle, however I have relaised the tappet plate is longer than the standard APS and Warinterest tappet plate. For this reason it hits on the case and doesn’t allow full travel.
Has anyone else had this problem.
I don’t want to bring the dremel out and make it fit because I’m sure those profiles on the end of the tappet plate are there for a reason and timing.

Have you compared it to the Wells tappet plate? @LowGuido did a really good job explaining the very minor differences which had a big impact.

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