I just bought a QXtender from Art Politte on Ebay. I had one already that fit my other cues but my McWorter Butt is 1 5/16" in diameter (Slightly larger than most cues) so Art made me a slightly bigger one.
These slide on easily and are low in price with fast delivery. I highly recommend his extension.
Wedge
http://www.ebay.com/sch/i.html?_nkw=QXtender&ssPageName=GSTL
These slide on easily and are low in price with fast delivery. I highly recommend his extension.
Wedge
http://www.ebay.com/sch/i.html?_nkw=QXtender&ssPageName=GSTL