Suppressors are sometimes prone to loosening due to thermal expansion. It is important to check the suppressor after firing 5 or 6 rounds to ensure it is not “shooting loose”. If it is loose, retighten and continue use. This should do it in most cases, but with some extreme firing schedule and rifle combinations, it is possible that it could work loose again. It should be checked again periodically, to make certain things are staying tight. CAUTION: The suppressor can get very hot during use, when checking to see if the suppressor is tight on the firearm make sure to protect yourself from this heat.