Ned covers the cosmetic abuse that your guns will take. They will also get a workout function-wise,as we shoot our guns as they were never really designed to be shot. Racking levers back and forth on rifles at high speed,popping open double barrels and putting stress on the locking lug,slamming hammers back on six-shooters. I make it sound rougher than it may be,but shooting guns in CAS does put them under a lot of stress-enough to keep cowboy gunsmiths hip deep in repairs. I've had good luck,just having a couple of hand springs break,but I see guns break in almost every match I shoot.