dono524 requested some variant parts for Captain Slug's HYPR. I already made a Meaker Mk18 shell adapter for the muzzle, but they wanted one that could handle the Mk18's break-action shell holder. So here it is! Hopefully!

One thing we need to get straight right away: this is very much a "use at your own risk" part. I have not actually gotten the break action to work yet, so I'm very much trusting the original work. And since I don't have printer access anymore, I haven't tested this yet. So you're kind of riding the lightning here!

It should also go without saying that I designed this around my Mk18 muzzle adapter, so you'll need to make one of those. Check for it in the remix references.

Unlike the original version, I'm afraid you'll probably need supports. There might've been a way to split it that could result in easier printing, but I couldn't come up with anything that didn't end with small glue joints. If supports are an issue, you might consider using the halved version, just mirror the same STL (I know it's kind of a hassle, but it helps control revisions as I don't need to re-save an A and B half).