UTG Weaver/Picatinny Riser Mount, Medium Profile, 0.83" High, 13 Slots

Really good quality. Best price I could find any where.

I needed a riser to mount a holographic sight on my AR15 with a fixed front sight. This riser gets the sight up perfectly and at a reasonable price. Excellent value!!!

Solid construction.

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Works well with a Steel Storm for mounting a dot sight above standard sights.

greta tool for mounting optics easy to mount

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Raises the rail as it's supposed to. I especially like the attachment bolts: their head can be turned by hand for reasonable tightness, and clamped down with a screwdriver or hex driver for real stability.

If only there was a way to provide the same functionality and stability with less weight.

This unit is relatively heavy. I would avoid using it if another solution to the problem can be found, e.g., use high rings on the original rail if that's all you need.

Installs easily and worked great on my AR-22 upper

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This also works well on rimfire and looks as sturdy as the one I use on the AR-15.