Firearm

摘要

A firearm having a gas piston system includes a bolt carrier, an adjustable gas piston block located forward on the firearm and an over-the-barrel spring and guide rod arrangement, all of which is housed and contained in a top rail that runs the length of the firearm and that maintains the alignment of these firearm components. The firearm further includes components that provide full auto firing capability. These components include a specially designed auto bracket that cooperates with a modified bolt carrier and a modified upper receiver.

主权项

1. A firearm comprising:
a lower receiver, an upper receiver mounted to the lower receiver, a bolt carrier positioned within the upper receiver, a barrel mounted to the upper receiver, a handguard surrounding at least part of the barrel, a trigger assembly, the trigger assembly including a trigger and a hammer, an auto sear, wherein the auto sear operatively contacts the hammer, and an auto bracket slidably mounted to the upper receiver and to the bolt carrier, the auto bracket defining opposing rails connected by a transversely extending support bracket and an opening in the support bracket for receiving and contacting the auto sear.