That's what Glock says, but I've read on the forums many times that shooters bring the gun home, pull the slide and clean & lube the gun including removing the copper lube/anti sieze. Never heard of any issues due to that. I'm the same way, from the box to the range. Same on the wife part too, anything to get me out of the house so she can have some "alone time" Wanna kill these ads? We can help!