Get the leading suppressor cover retention system. Using the unique BOA locking straps, you cover is secured to your suppressor ensuring it stays in place while shooting. Other covers out there loosen up over time and begin to slide off. When you are on target, the last thing you need is to look up at your cover. We have done extensive testing and found that the BOA system keeps the cover in place round after round. Other great benefits of the BOA straps include allowing for stretching over time, and being able to use it on similarly sized suppressors.