I’ve seen a lot of MOLLE panel setups, but this is a must have for anyone who is carrying a long gun in their vehicle. I just use one clamp to hold my rifle, in order to reduce the amount of time it takes to get the gun into action. The buttstock cup keeps my rifle from dropping the second I release the clamp. Please be aware that the standard buttstock cup only fits small or OEM buttstocks. Anything else, including PDW stocks or pistol braces will require the XL cup.