Patent attributes
The invention relates to devices for attaching or detaching a sound suppressor or an auxiliary device to a firearm. The device has a mount body that is attached by threads to a muzzle attachment device that is attached to the muzzle of a firearm. The muzzle attachment device has external mounting threads, a gas seal, an engagement surface, and a locking surface on the rear of the muzzle attachment device. The engagement surface simultaneously provides an alignment function and a forward locking function. A rotating collar is attached by threads to the mount body, and a locking spring with locking surfaces is attached to the mount body by threads, with the locking spring fitting inside the rotating collar. The rotating collar, when rotated, forces the locking spring and its locking surfaces downwards against the rear locking surface on the muzzle attachment device, providing force against the rear locking surface and securing the sound suppressor or auxiliary device to the muzzle attachment device through the combination of the forward engagement surface and the rear locking surface.