This is the endcap for a 40mm pipe build of a stormtrooper blaster rifle with a functional D-ring. It's basically the same as in the source model, but simplified and scaled to fit a pipe with a 40 mm outside diameter. It's in 3 parts, for easy printing. The "Endcap assembled.stl" is for reference only. I've printed this myself and checked the size. I'm quite pleased with the snug fit. I think it'll work well as an access lid for any electronics you may want to add to your pipe build. The Hengstler counter, grip and muzzle is already uploaded here. A scope, power cells, end cap lock and T-tracks are on the way, but I'm still not entirely pleased with them. Front and back sights will most probably be constructed and uploaded some time in the future.

Print the first two parts. You can either use a metal D-ring or use the 3D-printed one. It will need a bit of work with a file or some sandpaper to fit, depending on your printer's resolution and tolerance. It's a far too snug fit for the K8200.