US 2026/0104221 A1Published application

Quick disconnect mount for muzzle attachments

AssigneeSig Sauer, Inc.

InventorKrzysztof J. Kras

Life of this patent

Estimating the term…

Loading patent…

Abstract

A mounting assembly for a firearm muzzle attachment includes an attachment mount with a clutch assembly. A muzzle attachment can be secured to the distal end portion of the attachment mount. The attachment mount is configured to removably attach the muzzle attachment to a muzzle adapter installed on the end of a barrel. A clutch assembly on the attachment mount is operable between a locked position and an unlocked position. In the locked position, the clutch assembly frictionally engages the muzzle adapter to inhibit loosening rotation of the muzzle attachment relative to the muzzle adapter. In the unlocked position, the clutch assembly disengages from the muzzle adapter to permit loosening rotation of the attachment mount. The locking mechanism includes one or more secondary retention features that inhibit axial slipping of the assembly when the clutch assembly is in the locked position. A method of use is also disclosed.

Claims18

Dependent claims

A mounting assembly for a firearm muzzle device and configured to attach to a firearm barrel or a muzzle adapter having, in each case, a cylindrical sleeve portion, the mounting assembly comprising:

a mount body having a proximal end portion and a mount distal end portion, the mount body defining a passageway therethrough along a central axis and configured to releasably attach to the firearm barrel or the muzzle adapter when the firearm barrel or the muzzle adapter is received in the mount proximal end portion, and the mount distal end portion configured to attach to a firearm muzzle device;
and
cams mounted to the mount body and pivotable between an engaged position and a disengaged position, the cams arranged to engage the cylindrical sleeve portion of the firearm barrel or the muzzle adapter when in the engaged position;
a clutch assembly on the mount body, the clutch assembly operable between a locked position and an unlocked position, wherein moving the clutch assembly to the locked position allows the cams to rotate to the engaged position, and wherein moving the clutch assembly to the unlocked position moves the cams to the disengaged position;
and
a secondary retention structure configured to inhibit axial removal of the mounting assembly from the firearm barrel or the muzzle adapter when the clutch assembly is in the locked position.

3 more elements

A mounting assembly for a firearm muzzle device, the mounting assembly comprising:

a muzzle adapter having a cylindrical sleeve portion and defining a circumferential groove;
a mount body having a proximal end portion and a mount distal end portion, the mount body defining a passageway therethrough along a central axis and configured to releasably attach to the muzzle adapter when the muzzle adapter is received in the mount proximal end portion;
and
cams retained in the mount body and pivotable between an engaged position and a disengaged position, the cams arranged to engage the cylindrical sleeve portion of the muzzle adapter when in the engaged position;
a clutch assembly on the mount body, the clutch assembly including a clutch collar operable between a locked position and an unlocked position, wherein moving the clutch collar to the locked position allows the cams to rotate to the engaged position and moving the clutch assembly to the unlocked position moves the cams to the disengaged position;
and
a secondary retention structure configured to block axial removal of the mounting assembly from the firearm barrel or muzzle adapter when the clutch assembly is in the locked position.

4 more elements

Dependencies are inferred from the claim text.