If it is the ooooooold style Russian with the spring-loaded firing pin, congrats; otherwise, you would be safer with a spring-loaded pin OR with some EXTRA cleaning on the firing pin hole. The Yugos especially seem to get gunked up and invite the possibility of a slam-fire situation.
Dead Bears, the only good kind.
GANDER MOUNTAIN OF HATTIESBURG, MS IS OVERPRICED, HAS LOUSY CUSTOMER SERVICE, & SELLS BEAT UP PISTOLS TO LITTLE OLD LADIES AS "NEW". :p