Tried mounting a 5/8 BSA 42mil on it. You need to mill off the little 1/4" rib on top, then you can mount to the 5/8 rail. The threaded rods that you use to tighten the sight were hung up on the top of the rail since it doesn't have the picatinny slots.
IMO it would be too far forward on the gun for you to want to use it, even all the way back on the barrel.
Team Aggressive UWL
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