AUTOMATIC SMALL ARMS Russian patent published in 2012 - IPC F41A19/17 

FIELD: weapons and ammunition.

SUBSTANCE: automatic small arms comprises a barrel extension, a lock with a return spring, a trigger mechanism consisting of a hammer catch installed on an axis with a support surface responding to full cock, displaced from the hammer catch axis, a spring-loaded thrust of the hammer catch installed as capable of interaction with a trigger lever and a plunger. The hammer catch axis is fixed in the lock perpendicularly to a longitudinal axis. The full cock is made in the form of a ledge at the bottom of the barrel extension. The hammer catch thrust is installed above the hammer catch in the lock hole parallel to the hammer catch axis. The trigger lever is fixed on a vertical axis along a side wall of the barrel extension as capable of interaction with a plunger. The plunger is placed in a hole of the barrel extension side wall. In the barrel extension bottom there is a hole, where an axle is fixed, and a trigger lever hook made in the form of a double-arm lever is installed on it. On one of the hook arms there is a seat to locate a plunger tail, on the second one - a guide block as capable of interaction with the plunger and a slot, which covers the ledge on the trigger level with the plunger pressed. At the bottom of the barrel extension under the trigger lever there is a U-shaped spring, one tongue of which is connected to the plunger, and the second one - with the arm of the trigger lever hook.

EFFECT: increased reliability of arms operation and accuracy of firing.

6 dwg