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I bought 2 sets for a CG and HVA m38 and they worked very well. Mine were the old allen-wrench adjustable rear sight but it wasn't that hard to tune in.
Sounds like the MoJo would let me actually hit something with my Isreali .308 K98. The current site on this rifle is the worst site I've ever had, so bad I don't even bother shooting the rifle. I think I'll consider getting the Mojo.
Thanks guys.