Patent ID: 8539708

Claim:
A barrel mounting and retention device for attaching a barrel to a receiver of a firearm, comprising: a barrel extension disposed at a proximal end of the barrel, the barrel defining a first axial bore at least partially extending along the proximal end of the barrel; an annular collar located at a forward end of the barrel extension adjacent the proximal end of the barrel, and comprising a first clamp face defined about the barrel, at least a portion of the first clamp face comprising a first oblique portion extending in an oblique direction with respect to a longitudinal axis of the barrel; and a mounting plate having a substantially flat configuration and defining a second axial bore aligned with a third axial bore formed in the barrel extension, the barrel extending at least partially through the second and third axial bores, the mounting plate comprising a second clamp face formed along a rearward facing side surface thereof, at least a portion of the second clamp face comprising a second oblique portion extending in an oblique direction with respect to the longitudinal axis of the barrel; wherein at least a portion of the second oblique portion engages at least a portion of the first oblique portion as the mounting plate and annular collar are moved into engagement so as to adjust a position of the mounting plate to substantially align the second bore of the mounting plate with the third axial bore of the barrel extension as the mounting plate is moved toward the receiver, a clamping force applied against the barrel extension is aligned with a central axis of the barrel of the firearm so as to resist misalignment of the mounting plate.