Fully adjustable backup site: The site position can be finely adjusted by dialing up / down and left / right respectively.
Switching between two types of sites: You can easily switch between a battle site suitable for fully automatic shooting (for normal shooting) and an aim site (for precision shooting) for more accurate shooting.
20mm rail compatible: Can be installed on M4 models. It is used in combination with the front sight of the M4 model as standard equipment.