I watched the video and have a question. Was the first man firing from a cocked and unlocked position? The second man ( the leftie ) looked like he he was drawing with the left hand and perhaps unlocking with his right. It looked to me like he was putting the safety on with his left hand after the shot which leads me to believe he must have had an ambi-safety on the gun. I could not tell with the first man.
Surely they were not carrying cocked and ready to rock and depending on the grip safety alone....or were they?
You really have my interest.