hello all i dont know if i am supposed to post this here or not, if not then i apoligize, need info on grips for a ruger old army is the roa the same frame as the ruger blackhawk. also will the b square scope mount for the blackhawk fit the ruger old army, i can not find one for the roa, just the blackhawk. also does any one shoot with a red dot scope, i have ordered a conversion cylinder for it,plan to use it as a back up to my bp rifle thru deer season, use the conversion cylinder to hog hunt. thanks in advance for your help.