Does anyone know the exact size of the nut on the inside of the firing button,i want too change the spring but i cannot get the small nose pliers to do take it off,if i knew the size of the nut ,i can fashion a closed end wrench by grinding down a wrench to fit inside the tube,the spring is ok and its proberly safer,but it would be one hell of a mod if i could change that spring,i sanded all the contacts already.
