What are you wanting clarification on ? I polished the contact points on the bolt that contact the top of the reciever and I polished the reciever inside where in conts ts the bolt, there was a lot of over spray inside the reciever and apparently it wears off in time but polishing it removes it and aids in reducing the resistance when the bolt is cycling. Then again maybe it does nothing. Nothing ventured nothing gained, it won't perform any worse anyway.
Bookmarks