If used within the intended use of the device, it will last virtually indefinitely. There are no "wear" parts in our suppressors. On a precision rifle, you will wear out many barrels before the suppressor shows signs of wear. Other types of damage are covered by our Limited Lifetime Warranty. If you put our 30P-1 (a precision rifle suppressor) on a belt-fed M240 7.62x51 and blow it up, it's not covered.