M18 to Senco Adapter

I had an old Senco 18 gauge brad nailer where the battery gave up. Didn't have any other senco tools so investing in a new battery didn't make sense given all the m18 batteries I have. Made this simple adapter that does the job, it's far from perfect and can be improved upon I'm sure, but it works. I cut strips of metal from some HVAC stuff that was lying around and after a bit of finagling I got the contacts to mate. I then super glued the metal strips into the slots and so far so good. The fitment is very tight into the senco so I feel as if friction is enough but you can glue that as well if you don't feel the need to easily reverse the adapter.