What kind of barrel is it rubbing on? is it a heavy? when the oprod is installed and forward is it in line perfectly with the tail of the gas cylinder? if it isn't it will be crooked and will rub somewhere on the barrel. Usualy it is caused by the guide being off but sometimes a misindexed barrel.
oprod fit
trying to install a GI oprod onto my SA. seems like it hits the bottom of the barrel. any ideas where to remove metal to make it fit?
thanks, shot
thanks, shot
