Buds Gun Shop has model 10's with 4" and round butt for 269.00, didn't take much to twist the old arm for one.
http://www.budsgunshop.com/catalog/product_info.php/cPath/654_910/products_id/411545791
http://www.budsgunshop.com/catalog/product_info.php/cPath/654_910/products_id/411545791