It’s easy to keep debris, rain, snow, mud, bugs and more out of your barrel with Barrel Cot. Simply roll the Barrel Cot onto the barrel of your firearm – when you’re ready to shoot, go right ahead. Barrel Cot does not have to be removed and does not reduce your accuracy. It protects the muzzle of your gun without sacrificing any performance! One size fits all barrels – pistol, rifle, shotgun and muzzleloader. 20 Cots per bag.