Pro-Shot Shotgun Bore Brush - Pro-Shot is known worldwide for famous "Benchrest Quality" Brushes! This is the best brush available for cleaning your bore. Our bore brushes make cleaning faster & easier!! Shotgun bore brush construction consists of a Brass Core, Over-sized Heavy Duty Bronze Bristles with extra thick fill of bristles, and a looped end. This Benchrest high quality type of construction makes it the finest brush available for shotguns Pro-Shot Bore Brush - Precision Engineered Design, Fit, & Function Over-sized Superior Stiff Bristles with extra thick fill Precision Shotgun #5/16-27 Threads Made in USA