PTG Masuer 98 Bolt Lug Lapping Tool

Bolt locking lugs cam and lock into corresponding lug recesses in the receiver as the bolt is closed. For the smoothest operation of the bolt and utmost accuracy, both lugs should be smooth and in full contact with the corresponding lug recesses. In factory production rifles and in surplus military rifles, this is the exception, rather than the rule. Before final headspacing, simply thread this tool into the receiver threads, apply lapping compound to the bolt lugs, then open and close the bolt