I have a set of used Crimson Trace Lasergrips for sale. They are the LG-907s which fit round butt 1911s and also the S&W “Bobtail” (actually round butt) 1911s.
They are too thick for my hand and I have decided to let them go. My loss is your gain.
http://www.crimsontrace.com/01-9470
$215 Shipped. Discreet Paypal (+4% if not sent as gift) Only.