Obsolete - Katobu Side v5 Catch+Spring Mod

**OBSOLETE** - My changes to this model have been incorporated into the mainline Katobu model. There is no need to print this - use the most recent version of the Katobu magazine instead.

This is the sidewall component of Tobu's Katobu short-dart Nerf magazine, which I've modified by adding:

* A slot in the sidewall to contain the free end of a drum spring
* An extra lower retaining catch slot, for compatibility with some adapters that use the blaster shell's catch

This part is identic