Mount your ShotKam to any 12 Gauge over-and-under, semi-auto, and pump-action with this quick-release mount. It is lined with rubber pads which provide a firm grip without leaving marks; there is no metal-to-metal contact. Every new camera purchase automatically includes this 12 Gauge quick-release mount.

Should I get an extra one for my other guns?

No, you only need one 12 Gauge mount per ShotKam. The camera stays screwed into the bottom portion of the mount, then the upper part of the mount opens like a claw to attach onto your shotguns. It takes 10-seconds to move the camera between shotgun barrels, so you only need one quick-release per camera. The mount does not stay attached to the shotgun, so having multiple 12 Gauge quick-release mounts is not beneficial.