RifleShooter had his Rock River Arms AR-15 go kaboom when he was shooting Ultramax remanufactured ammunition. RRA blamed the ammunition and replaced it at cost …
The bolt carrier appears to have split, you will notice it protruding into the magazine well. On the left side the upper was cracked and bulged, the bolt hold open sheared off. On the right, the upper bulged and the ejection port cover bent. The magazine was blown out of the rifle. Notice the how the bottom of the mag bulged from the pressure.
Thank fully no one was hurt. I think that is a testament to the design of the rifle and the quality of RRA.
According to the owner, RRA told him it was cased by the ammunition (Ultramax) and this is the second gun they had destroyed by it. The RRA mishap report, “Lower OK, bolt still in battery, lockup. Fired casing came apart at base, no bulges in barrel.” RRA replaced the upper at cost ($323.50) after he signed a release absolving them of any liability. They suggested contacting the ammunition manufacturer.
The moral of the story is you should not be surprised if your gun goes kaboom shooting remanufactured ammunition.