Master Lock Adjustable Gun Lock. OpticsPlanet Inc is an Authorized US Distributor for Master Lock Gun Storage. This trigger guard lock is designed of steel and zinc for maximum durability and includes protective rubber pads to shield the gun from scratches or any other damages. Specifications for Master Lock Adjustable Gun Lock 90DSPT: Manufacturer: Master Lock Color: Black/Blue Fabric/Material: Steel and Zinc Additional Features: Keyed Differently Package Contents: Master Lock Adjustable Gun Lock This picture above is representative of the group of items. It may not match the exact item that you are looking at. Please make sure to read the description of the individual item. We offer complete line of Master Lock Gun Storage. For our complete selection of products by Master Lock on sale please visit our Master Lock page. For more Gun Storage please visit our Gun Storage store section.