Board Thread:General Nerf discussion/@comment-26431461-20170630180631/@comment-26431461-20170701213235

Cerrwiden wrote: It could have something to do with the smart ARs. Did you take out the whole back of the shell or just the pegs? That's probably the answer and I've thought of it before. However, I only took out the pegs.

EDIT: I believe the problem is that the dart post used to kinda guide the AR peg into place, so it was properly disengaged. Without the presence of the dart post, the AR probably found its way into the hole in the back of the dart, failing to disengage.