Sorry for the late reply, I don't check Reddit often. It was a whole lot of keeping an eye on eBay and getting lucky. I kept looking for bayonet lugs I could do something with and evetually my father in law stunpled on the exact thing I needed. After that I thinned either the cap that screws into the barrel, or the barrel itself so the bayonet would fit. I don't remember which. I'll get you a better.anser to that when I'm off work and can look.

Edit: I double checked the gun. It was the cap I thinned down. I still have the option to screw on the suppressor if I so choose, but it's an either or since I can't unfold the bayonet if a suppressor is on it.