Sack Ups SWAT BLACK RIOT SHOTGUN SACK-UP 42 17DF02BC SAK. They provide protection for your firearm in the field or in storage and prevent dings and scratches. Keeps your firearm looking as new as it did the day that you bought it. Features of Sack Ups SWAT BLACK RIOT SHOTGUN SACK-UP 42: Swat Black Silicone treated Protects firearms and other valuable gear against rust Dirt and scratches Natural wicking ability Ideal for year round storage Package Contents: Sack Ups SWAT BLACK RIOT SHOTGUN SACK-UP 42 Sack-Ups are Silicone treated to prevent rust and to wick moisture away from your firearm. They provide protection for your firearm in the field or in storage and prevent dings and scratches. Keeps your firearm looking as new as it did the day that you bought it. SAK503