Picatinny Riser Mount Rail Adjustable Height 0.9-1.2" Optic Riser Mount for Red Dot Sight Scope fit 20mm Picatinny/Weaver Rails Lightweight 3 Slots

a need item for sights. received thanks.

Well made, tight tolerances, fits well. Didn't find the grub screws too soft, but did not overtighten either, treated with a bit of care when taking other reviews into account.

Originally bought this for my holo sight. Mounting the riser was easy enough but required a hex key which was slightly inconvenient. I found that using a 1 inch riser is too high for holographic sight even if you adjust it. Giving 3 stars because though I can't use it, it looks to be of decent quality. Would be 4 stars if the screws didn't require a hex key

This has been made to exactly the opposite measurements of a picatinny rail. But due to the angles, that doesn't work (it needs to compensate). As a result, this riser doesn't attach properly. I imagine that if the positive reviewers went and checked, they'd find it isn't sitting flush. I wouldn't chance my optic to something holding on with about 20% of the surface area it should be clamping with. 1 star because it's fundamentally made wrong.

I have a very small Red Dot Sight to which this product works perfectly.

Had to drill out one of the screws to remove it, hex heads basically disintegrated after gently turning.