If you own a Walther Air Rifle this refillable air tank will give you the air you need to send those pellets downrange! When it is at full capacity, this tank allows you to fire up to 600 shots between refills. It utilizes a built-in pressure gauge on one end to allow you to see your remaining air level as you are shooting. With its steel constructed body, this air tank has the quality and durability that we all expect from a legendary company like Walther.