Been carrying mine 24/7 for 5 years now. Abuse the heck out of it, shoot 500-1k don't clean it for a week, just open it up once a while wipe it down and give it a kiss of syn oil. No rust or aparent wear. 10+ k rounds to date, just lint from my carry method. Added a rail adaptor for my M6X. Stored in my PU when at work, temp can be any where from -10 to 115 when I am in the AZ desert, no malfuctions to date, this is one tough gun.