FIELD: weapons and ammunition.
SUBSTANCE: bolt has locking chamber, locking sleeve concentrically located in locking chamber and having several locking elements moved between inner free position and outer locked position by means of release device, and bolt lever. Bolt lever is located in the guide of the bolt and actuated by means of bolt handle. The first curved element is located with possibility of rotation in the guide of the bolt. The second curved element has the possibility of rotation irrespective of the first curved element with rear control cam for support on fixed control element. Return-spring housing has side guide slots for leading of the bolt guide along them. In return-spring housing there are two control platforms for interaction with two curved elements located near each other in the bolt guide in order to put the bolt into action.
EFFECT: reliable operation and easy travel of the bolt.
10 cl, 19 dwg
