Patent ID: 7107715

Claim:
A bolt assembly with locking system for firearms, comprising: a bolt slide; a bolt having a body with a longitudinal slot formed therein a bolt head mounted to one end of said body, said bolt body being slideably received within said bolt slide; a locking member including a locking ring and at least one helical slot formed therein, wherein the locking member is mounted along said bolt and is rotatable about a longitudinal axis extending through said bolt assembly; and a cam assembly received within said bolt slide and in a position to engage said locking member so as to cause said locking member to rotate about said bolt as said bolt is moved longitudinally with respect to said bolt slide, wherein said cam assembly engages said longitudinal slot of said bolt and said helical slot of said locking member to cause rotation of the locking ring, and wherein said bolt slide moves longitudinally with respect to said bolt, and said locking member.