Aero precision nib bcg - Aero Precision AR15 5.56mm Bolt Carrier Group

I love Aero Precision. They really offer many quality products at affordable prices. I own several Aero uppers, lowers, and AR parts. i really liked the look of this nickel BCG. But after hundreds of rounds of flawless firing i began to have issues. I had an issue with short stroking and ultimately i had to send this BCG back. No issues with lubrication, gas key being loose, or any issue with the bolt being damaged. There was really no explanation. On the bright side Aero's products are protected by warenty and their customer service is taking care of me.