Adjustable gas block method, system and device for a gas operation firearm

摘要

Methods, systems and devices for an adjustable gas block with variable gas port dimensions to control the amount of gas in the gas block before the gas enters into the gas tube. The adjustable gas block includes a gas block barrel bore to slide over a barrel and a gas tube bore to mate with the firearm gas tube, a gas port between the barrel bore and the gas tube bore, a sliding regulator plate to slide one of the gas ports into alignment with the block gas port and the barrel gas port, and a spring and detent pin to hold the sliding regulator plate in alignment with the barrel gas port. An alignment hole in the gas tube bore can align the block gas port with the barrel gas port.

主权项

1. An adjustable gas block assembly for a firearm comprising:
a gas block barrel bore to slide the adjustable gas block over a barrel of the firearm and a gas tube bore to mate with a gas tube of the firearm; a gas port in the adjustable gas block between the barrel bore and the gas tube bore; a sliding regulator plate having two or more different regulator plate gas ports movably positioned in an aperture between the gas block barrel bore and the gas tube bore in the adjustable gas block to slide one of the two or more different regulator plate gas ports into alignment with the gas port between the barrel bore and the gas tube bore and a barrel gas port; a detent spring and detent pin parallel along the centerline of the barrel of the firearm to mate with a detent dimple on the sliding regulator plate to apply a horizontal force to hold a selected one of the two or more different regulator plate gas ports in alignment with the barrel gas port; and a guide including a channel across at least one of the upper and lower surface of the sliding regulator plate perpendicular to the centerline of the barrel of the firearm mating with a baffle rail across a corresponding one of the upper and lower surface of the aperture to prevent movement of the sliding regulator plate in opposition to the force applied by the detent pin and detent spring.