I am currently almost done with my +bow, and have been using a combination of Amazon and McMaster for parts. For anyone interested, you can get the clear 1" x 1/2" bushing on Amazon for $10 if your really intense. hope to get a picture up in the next few days.
There are only two types of glue I use. Fishin glue and plumbers goop. I don't see a reason why I should use anything else when it comes to the plastics in Nerf guns.