Loader neck to small!!!

[purplemag]

My Revvy neck is a bit to small to fit in the Micro e feed neck. I usually just use electrical tape to snug it in, does anyone know of a better/more permanent solution to keep the loader in place and snug(but still able to be removed!)?

[Dayspring]

Dye makes a feed neck expander collar. It fits inside the neck of the revvy.

[rmhawk]

and it works wonders

[FragTek]

If you are looking for another quick fix you can use a small piece of micro line or a good sized o-ring wedged in there does the trick too.