This Weaver Saddle Shotgun Mount is designed for use with Mossberg 500 and 835 models, and is made in the United States. It features an easy install design and is suitable for use with 12-gauge shotguns. The mount is compatible with a range of optics and is ideal for hunting and other outdoor activities. Please note that this product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer.