Great Nut - Doesn't fit Troy Alpha
I ordered this in a pinch because the barrel nut I normally use was out of stock. The finish was fantastic, threads very clean and well cut, and initially I considered making THIS my standard barrel nut for future builds. Unfortunately, the Core nut is a bit oversized, as such, it doesn't fit into the machined grooves of the Troy Alpha Rails. I found out just how tough their finish and materials are by filing/sanding/polishing to fit this barrel nut into the Troy handguards - I was equally frustrated and impressed, the finish was very durable. I would venture that there are several models of handguard that rely upon a standard barrel nut that this would not work for, so be aware of that before buying. Overall, very good barrel nut - just won't work for my application.
