Reginald is trying out some new experiments he's making (mainly ones about weapons) and he decided to attempt making a gun face helmet thing as he got inspired make it after watching a movie he saw and wanted to test the idea out to see if it can work so he got to work making it with Metal Alex getting all the right stuff for it

Why is Alex/I also here there? Reginald wanted a test subject to try to test it out but ended up testing it himself as Alex/I didn't want to try it

It sure is an insane idea and a wacky and most possibly dangerous thing but Reginald is always wanting to test out the risky ideas when it comes to building machinery