Risers are used to co-witness a red dot sight with iron sights of the firearm. You can have the sights aligned with the red dot (full co-witness) or at the bottom part of the optic’s field of view, with the dot above the sights (lower 1/3 co-witness).
Read our Blog post about Absolute and Lower 1/3 Cowitness here
Our customers are often confused by the terms adapter, riser, and spacer. These are used for the same purpose but have different mounting characteristics. The manufacturers of mounts are not consistent when it comes to naming these types of mounts.
For example, some mount manufacturers use the term ‘riser’ to refer to a mounting part that is referred to as ‘spacer’ by other mount manufacturers. Furthermore, some companies use the terms ‘riser’ and ‘spacer’ to describe a mounting item that is referred to as an adapter by other companies.
To eliminate confusion, we have relied on our own explanation when categorizing adapters, risers, and spacers.
The mounting standard on the bottom and the top is the same. For example, it attaches to a Picatinny rail and has a Picatinny mounting surface on top.
It is always fixed to the mounting item below it, either with tools or through a quick-detachable method.
Red dot sight risers are almost exclusively made from aluminium.
They are produced by:
UTG, and many others.