We stand behind our products and will replace poducts if they are damaged in shipping, but will not replace them if they have been used. Apogee Marble LLC, "Apogee Products" shall hold no liabilty of products sold if they are used illegally or differantly or in any illegal activity. They shall be used only for their intended use. Our products are not intended to be shot through, or used to modify or muffle noise of any firearm. It is the puchasers responsibility to obey all laws when using Apogee Products products.