Theres been a few times i would run, sort of like a drill. Start with my AR, run out of ammo, drop it move on to side arm all while moving perty fast toward targets. Never really hurt it. I run a Votex Strikefire. That things hokds up really good, was expecting to knock the zero out, but didnt. Basically just wanted to see how fast i could transition to my side arm while moving in on a target. Still need to work at it. Haha. Damn shirt messed me up