I bought a cheap stainless 116 in 30-06 and I am looking to convert it to 300 win mag. I am thinking about getting a savage stainless 300 win mag barrel that is factory threaded for a muzzle brake. Is there a source for these muzzle brakes or should I just try to find an aftermarket one? I searched on here but couldn't find anything about where to get the factory muzzle brakes. Only reason I'm interested in factory first is I figured it would match the barrel contour better than an aftermarket one.