Adjustable shotgun choke

Abstract

The present invention is a light weight low profile variable shotgun bore choke that is easily manually adjusted by the user. To minimize the choke profile, the choke is connected to the shotgun through a threaded connection within the muzzle bore. External threads on a choke inner sleeve are configured to mate with standard threads found in existing prior shotgun barrel muzzles or with custom threads specifically formed. By using a threaded connection internal to the gun barrel, the overall radial dimensions of the choke are minimized thereby reducing the profile visible to the user. Weight is also reduced by a design which reduces radial dimensions and by use of light weight materials. The choke is adjusted by the user by manually rotating an outer adjustment sleeve with respect to an inner bore sleeve which is fixed to the shotgun barrel. The adjustment sleeve rotates through a range of choke conditions between two physical stops. Various choke conditions are indicated by circumferential grooves that are easily viewed from any location around the choke.

Dependencies are inferred from the claim text.