I ordered one of their Supercomp XL muzzle brakes for an AK. I was inadvertently shipped a 308 brake on accident. After I contacted them to get it worked out, the owner emailed me back, apologized, told me to keep the one I was shipped, he refunded my purchase in full, then shipped me the correct brake...Mistakes happen. Its how a company steps up when mistakes are made that defines them. Gogunusa proved themselves to be a truly stand up outfit. They make a fantastic brake as well for a lot of firearm platforms.