Hey everyone i know this is a dive sight but i do alot of frog gigging here in the south so i have been looking around this sight for ideas to build a speargun for frog gigging and this sight has been very helpfull.the style speargun im building is real short the gun measures out to be 30 inches in overall length i am going to be useing a stock off a 22lr riffle,i have plans on doing it the roller style gun,i have started building it and would like for yalls advice on it and what i should do to improve it.Here is a link to the pictures i have so far http://i467.photobucket.com/albums/rr34/divemaster12002/my%20homemade%20speargun/2013-03-20_19-20-33_413.jpg