Your suppressor mirage cover is designed to mitigate the mirage caused by the radiant heat emitted from your suppressor as you shoot. The Original Suppressor Mirage Cover is designed solely for use on bolt-action and semi-auto precision rifles or for slow to moderate firing schedules. Through several years of observation we have found that most of the small number of cover failures we’ve seen have resulted from use on rapidly fired AR15 or other 5.56mm rifles or through long periods of sustained fire from 5.56mm rifles. For these higher rates of fire, the new Hi-Temp Suppressor Cover is the best choice. The Hi-Temperature Suppressor Cover mitigates mirage just like our original cover, but is slightly more bulky than the very trim and sleek form of our original Suppressor Mirage Cover. To avoid damage to your suppressor and your cover,you still need to allow your suppressor to cool frequently. Properly installed and used as intended, your Armageddon Gear Suppressor Mirage Cover will provide many years of trouble-free service.