I have an US Optics SR-8 painted in FDE. Blue dot reticle. Will update with more photos. EREK Knob. I have the steel US optics mount for 100 which was 250 new. I know its not a popular style mount anymore. Come with butler creek caps and a quick throw lever for magnification. Full Disclosure I found out I can't find the erek knob mini's plate. I remember US optics sent one with no hole and I had to order a plate with a hole. I just left that one on there. I also found out under the mount is a part where the FDE has flaked. I am also attaching my latest 100 yard groups on the ar-10 with a criterion barrel and 168 grain smk i worked up using 8208. SOLD
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