So I am doing some upgrades to my carbon 15 a few days back and as I am pulling my barrel off of my rifle to put it in a vice for the new flash suppressor. I noticed some white flaky material around the barrel extension and as i gently wiggled the barrel BY HAND to get it out of the recess in the receiver, the barrel TURNED A HALF TURN while still seated in the recess. In a nutshell the receiver was stripped out. I call BM customer service and am told that although I followed all the proper steps and I quote " A carbon stripped upper will be 135.00 how would you like to pay for that?". After a short argument to no avail about their "warranty" the refused to even look at my less than 1 year old rifle. So I bought an forged upper and lower SOG Armory set from a friend of mine for an awesome deal and have since written off the BM Product. There seems to be a problem when a company sells expensive rifles such as the ACR(2,343 Their Price) and the .450 (1441.00 their price) and only offers a one year warranty and don't even stand behind that. This isn't so much to bash BM because my rifle shot decent, but to inform anyone looking at a BM as to the behavior of their customer service. Let us all know if you've had a similar expiriend