Pool Cue Extension Adapter Converter 5/16x14 shaft to 5/16×18 butt Aluminum 1.75". This adapter converter fits a 5/16x14 shaft to a 5/16×18 butt. Meucci and viking qr. Great price, contact your local cue maker to see the price of their adapters. Then compare. Free shipping to USA.

I have 14 other types adapters as shown. Any questions? Feel free to ask