check and see if the selector lever was modified, if the little finger that contacts the blocking bar was removed(along with blocking bar) automatic fire will result. what i can't understand, is how can a semi bolt with no feed lip, fire auto.
RoverDave said:I wouldn't enlarge the holes in the receiver. Modifying the receiver to accept full auto parts is a gray area. ATF allows certain modifications and not others so it's best to stay clear of that.