A handful of years ago I went through the SA facility. My brother is tight with the number 3 or 4 guy. We walked around drooling over racks holding hundreds of .45 pistols, racks of hundreds of M1A's, and bins full of TONS of parts.
Then, courtesy of SA, we went to their range. The big-wheel opened the back of his SUV and pulled out SOCOM number 5. It still had a bunch of temperature sensors stuck to it. We got about 50 rounds out of it before we launched the extractor and related parts into a parallel universe (a somewhat common problem with M1A's).
They are good people. I watched a couple of their techs working on an M1A that was in for some type of issue. Amazing.