This patented shoot-thru gun bore cleaner effectively field cleans shotguns in an instant. Simply load safely fire and the internal device power scrubs traps particles and wipes the bore clean. Forget the dirty tedious and time-consuming task of traditional field cleaning methods ? field clean your shotgun with CleanShot. 20 gauge 2-3/4?.Developed for both smooth and rifled bores ? 100% gun barrel safeEfficiently cleans your shotgun in an instantHelps preserve gun value and performanceSaves you time money and hassle over traditional cleaning methodsMade in the USA