Buffer system for firearm
AssigneeWHG Properties, LLC
InventorsFrank Eric Robinson, William H. Geissele
Life of this patent
Estimating the term…
Abstract
Provided herein are buffer systems, bolt assemblies, firearms, and related methods, devices, and assemblies. A bolt carrier assembly for a firearm of an example includes: a bolt carrier body defining a cavity extending along a longitudinal axis of the bolt carrier; at least one weight disposed within the cavity; a forward stop at a forward end of the cavity; and an aft stop at an aft end of the cavity. In some embodiments, the bolt carrier assembly may include a spring, where the spring biases the at least one weight along the longitudinal axis toward at least one of the forward stop or the aft stop, where the at least one weight is configured to be driven against the spring bias in response to a firing action of the firearm.
Claims25
A bolt carrier assembly for a firearm comprising:
- a bolt carrier body defining a cavity extending along a longitudinal axis of the bolt carrier;
- at least one weight disposed within the cavity and movable relative to the bolt carrier body;
- a forward stop at a forward end of the cavity;
- and
- an aft stop at an aft end of the cavity;
- and
- a spring, wherein the spring is configured to bias the at least one weight along the longitudinal axis into contact with one of the forward stop or the aft stop.
A firearm comprising:
- a barrel assembly comprising a barrel or a barrel extension defining one or more locking lugs;
- an upper receiver attached to the barrel assembly;
- a bolt carrier within the upper receiver, wherein the bolt carrier defines a cavity therein extending along a longitudinal axis of the bolt carrier, the bolt carrier comprising a bolt engaging the one or more locking lugs of the barrel assembly;
- at least one weight disposed within the cavity;
- a forward stop at a forward end of the cavity;
- an aft stop at an aft end of the cavity;
- and
- a spring, wherein the spring is configured to bias the at least one weight along the longitudinal axis into contact with one of the forward stop or the aft stop.
A weight for a bolt carrier assembly of a firearm, the weight defining:
- a main body defining a proximal end, a distal end, and a first diameter perpendicular to an axis extending between the proximal end and the distal end, the first diameter being configured such that the weight is configured to fit within a bolt carrier;
- a second portion extending from the proximal end of the main body, the second portion defining a second diameter that is less than the first diameter, wherein the second portion is disposed, during at least a portion of a firing cycle for the firearm, proximate to a hammer of the firearm, wherein second diameter of the second portion provides a clearance for the hammer of the firearm to operate.
Dependencies are inferred from the claim text.