04-07-2011, 05:24 PM
The only issue in the past regarding component availability has been brass, and with Hornady's entrance into the market, that seems to have completely disappeared.
As for bolts/extensions. I have never heard of a barrel exentension failure. There have been bolt failures, just as there have been 5.56 bolt failures. Early on in the life of the Grendel they were more common, but Alexander has repeatedly updated and upgraded the steel, as well as the design, and failures are rare now. The designs are backwards compatible and there are no true Grendel designs that are not.
As for others with proprietary or special designs, I have heard of them, but never seen any open testing that showed they were superior.
As for bolts/extensions. I have never heard of a barrel exentension failure. There have been bolt failures, just as there have been 5.56 bolt failures. Early on in the life of the Grendel they were more common, but Alexander has repeatedly updated and upgraded the steel, as well as the design, and failures are rare now. The designs are backwards compatible and there are no true Grendel designs that are not.
As for others with proprietary or special designs, I have heard of them, but never seen any open testing that showed they were superior.