Gents, I have an Geissele 'Super Gas Block' I bought for a build and have decided to go with an adjustable block instead. It is brand new, never mounted, still in the bag. Midway and Brownell's have them for $59.00 How about $40.00..?? Here's the block I have (stainless matte finish - NOT nitrided black): http://www.midwayusa.com/product/25...d-barrel-0750-inside-diameter-stainless-steel Thanks for reading - !!