Buffer extension
OwnerJames Matthew Underwood, Larry Cullen Underwoodinventors
Life of this patent
Estimating the term…
Abstract
A buffer extension assembly may include a body having at least one face and a cylindrical surface. The body may be disposed between and contact at least one of a buffer and a bolt carrier group such that the body increases both the effective mass and the effective length of the buffer. The body includes at least one hole extending along a length of the body.
Claims18
A buffer extension for a firearm that includes a buffer, a buffer spring, and a bolt carrier group, the buffer extension comprising:
- a body comprising a front face, a rear face, a length extending from the front face to the rear face, at least one hole extending along the length, at least one weight disposed within the at least one hole, and an outer surface, wherein:
- an entirety of the buffer extension is disposed between a forwardmost face of the buffer and a rearmost surface of the bolt carrier group;
- the rear face of the buffer extension contacts the forwardmost face of the buffer when the buffer is pushed to a forwardmost position by the buffer spring and during rearward movement of the buffer;
- the front face of the buffer extension contacts the rearmost surface of the bolt carrier group;
- and
- the buffer extension increases both the effective mass and the effective length of the buffer.
A buffer extension for a firearm that includes a buffer, a buffer spring, and a bolt carrier group, the buffer extension comprising:
- a cylindrical body comprising a front face, a rear face, a length extending from the front face to the rear face, a plurality of holes extending along the length, and an outer surface, wherein:
- an entirety of the buffer extension is disposed between a forwardmost face of the buffer and a rearmost surface of the bolt carrier group;
- the rear face of the buffer extension contacts the forwardmost face of the buffer when the buffer is pushed to a forwardmost position by the buffer spring and during rearward movement of the buffer;
- and
- the front face of the buffer extension contacts the rearmost surface of the bolt carrier group.
A buffer extension comprising:
- a body comprising at least one face, an outer surface, and at least one hole extending along a length of the body, wherein the face comprises a groove that intersects at least a portion of the at least one hole;
- and
- an O-ring disposed within the groove,
- wherein the body is disposed between and contacts at least one of a buffer and a bolt carrier group such that the body increases both the effective mass and the effective length of the buffer.
Dependencies are inferred from the claim text.