Retractable inner barrel structure of a bolt

Abstract

A retractable inner barrel structure of a bolt includes a bolt handle which is installed inside a latching groove of a flexible outer barrel with a fixing pin and a spring, and is passed through a gliding groove of a gun barrel, so as to be fixed into a restraining part of the gliding groove, upon pulling back the flexible outer barrel. A retractable inner barrel is located inside the flexible outer barrel, and is provided with two racks at two sides of the retractable inner barrel. Moreover, a spring for fixing a gun barrel shroud is mounted on one of the racks, and a pillar and a seat are also located inside the retractable inner barrel. The gun barrel shroud is provided with a latching groove and an adjusting device including a poking switch for adjusting a trajectory is also installed inside the gun barrel shroud.

1 . A retractable inner barrel structure of a bolt mainly comprising a bolt handle, a flexible outer barrel, a retractable inner barrel, a pillar, a seat, a gun barrel shroud, a safety seat, and an adjusting device, comprising the bolt handle is installed in a latching groove of the flexible outer barrel with a fixing pin and a spring, and is passed through a gliding groove of a gun barrel, so as to be fixed into a restraining part of the gliding groove upon pulling back the flexible outer barrel; the retractable inner barrel being located inside the flexible outer barrel, and racks being located at two sides of the retractable inner barrel, with a spring for fixing the gun barrel shroud mounted on one of the racks; the pillar and the seat being located inside the retractable inner barrel; the gun barrel shroud being provided with a latching groove which is corresponding to a latching piece latched on the safety seat, and the adjusting device being located inside the gun barrel shroud and a poking switch for adjusting a trajectory being located on the adjusting device.