Patent ID: 8555765
Filing Date: 2013-10-15
Classification: F41A

Abstract:
1. A device for mounting a suppressor to a muzzle of a firearm, the device comprising: a muzzle attachment device having an external surface and defining a first bore extending between open first and second ends, wherein the first bore has an internal thread formed proximate the first end that is configured for selective attachment to the muzzle, wherein the external surface defines an external mounting thread and a circumferential flange having a patterned surface proximate the first end of the muzzle attachment device; a mount body having an external body surface and defining a second bore extending between open front and rear faces that has an internal body surface, wherein an internal thread is defined on a portion of the internal body surface proximate the proximal end that is configured to selectively matingly interface with the external mounting threads, wherein the external body surface defines an external body thread positioned a predetermined distance from the rear face of the mount body, wherein a spring retaining groove is defined in the external surface of the mount body between the rear face of the mount body and the external body threads, and wherein the spring retaining groove defines a pair of openings that are positioned in overlying registration with a portion of the patterned surface of the muzzle attachment device when the mount body and muzzle attachment device are coupled together; and a selectively locking assembly configured to selectively prevent rotation of the mount body relative to the muzzle attachment device, the locking assembly comprising: an arcuate locking spring comprising a first end, an opposed second end, an inner spring surface and an outer spring surface, wherein the locking spring is sized so that the inner spring surface is in contact with and surrounds at least a portion of the spring retaining groove, wherein the locking spring comprises a pawl positioned at each of the first and second ends of the locking spring, each pawl having a locking collar interface and being configured to be movably received in a respective one of the openings in the spring retaining groove, and wherein the locking spring is biasable about and between an unlocked position in which the pawls are operatively spaced from the patterned surface of the muzzle attachment device, and a locked position in which at least a portion of the locking spring is in contact with portions of the patterned surface of the muzzle attachment device; and an annular locking collar having an external collar surface and an internal collar surface having an inner collar diameter, wherein internal collar threads are defined in the internal collar surface that are configured to matingly engage the external body threads of the mount body, wherein a plurality of milled recesses are defined in the internal collar surface rearward of the internal collar threads, and wherein each recess of the plurality of milled recesses has a recess diameter that is greater than the inner collar diameter, wherein the locking collar is rotatable about and between a first position, in which an inner surface of the milled recesses of the locking collar are adjacent the locking collar interfaces of the locking spring and the inner surface of the milled recesses urges the locking spring to the unlocked position, and a second position, in which the inner surface of the milled recesses of the locking collar are spaced from the locking collar interfaces of the locking spring and the inner surface of the locking collar urges the locking spring to the locked position.