I don't have much information on Shocktech's operation, only a couple vague pictures. Shocktech is an old paintball aftermarket develoepr from the pre-2000 era. They owned their own manufacturing at one point, and produced a lot of accessories for different markers. Their workhorse machine was a Haas VF4 which was used to perform body and frame milling, amongst other tasks.
One of the interesting things about Shocktech is that they used to perform their own in-house milling for certain private label markers. Typically, private label markers are milled by their original manufacturer but Shocktech and Hybrid are the main exceptions. Shocktech's manufacturing operations were downsized in 2009, and they sold off a number of unfinished items at clearance prices. Below are some pictures of raw marker parts.
Shocktech's milling patterns are defined by very organic-looking contours and forms that blend together. The milling was designed by long-time marker tech Danny Love.