Walther Magnum Gun Magazine End

I made this for my Grandfather's Walther Magnum gun.
I do not know anything about guns, so please don't ask.

I was given the broken piece to the magazine, and I took a caliper and made a copy in SolidWorks (and put Kayne on the back for my Grandfather)

NOTE: GUNS ARE DANGEROUS, DON'T KILL YOURSELF OR ANYONE ELSE WITH THIS! NO, SERIOUSLY!