Gun Muzzle Covers Prevent Dust Sands Iquid into the Bore,Soft Rubber ● Flexible rubber material permits each cover can fit several calibers. ● It can prevent stones, sands, rain from the bore during firearms storage. Especially, at outdoor ,like desert. ● If small stones, sands enter the bore, but you are difficult to find them, it means a potential danger to you while shooting. If with the covers, you can save the problem. ● Red and brown color for your choice. ● OEM and customer specifications are acceptable.