RE: blasting
There are essentially three options when it comes to blasting: 1) glass beads give an attractive satin finish that most major manufactureres use on stainless guns. 2) Oxide blasting creates a very non-reflective gray finish that is functionally very stealthy - but not as pretty as glass beads. It is sometimes known as French Gray. 3) Sand blasting is is a very rough almost textured finish. Great for hiding cosmetic imperfections. Has a little more shine (sparkle), believe it or not, than oxide blasting. 95% of my customers prefer the glass beads. This is not particularly difficult or expensive to do. It's the setup and assembly/disassembly that takes a little time. Should run about half the cost of bluing.