Going on 4 years - JP Enterprises Stainless Full Mass FMOS Bolt Carrier

I've had this for 4 years and I can't say enough good things about this BCG. Def worth the buy and it's a work horse. I run this thing hard. I have about 5000 rds and about 2000 of that is suppressed. I actually had my first malfunction just the other day, failure to extract, but it's mainly due to it not being clean and lubed. I purposely haven't been cleaning it at all just to see how it'll do after shooting it suppressed for months. But it works fine now after a good cleaning. Pretty legit. It is duty rated if that's what you're looking for. The finish allows it to be cleaned pretty easily but it's just an awesome BCG. You get more than what you pay for with this.