The Strike Variable Optic Mount for Aimpoint Micro Standard is a user-defined height optic mount. A mount option for the popular Aimpoint Micro Standard footprint which is used on many red dots offered on the market. With a height range of 1/3 co-witness to a maximum of 1.93 inches, this mount allows for precise, incremental height adjustments via notches on the slider. When properly installed and torqued, this mount is also designed to maintain zero even after re-installation, giving you peace of mind. Made from lightweight and high-strength 6061-T6 aluminum and machined with precision, the Strike Variable Optic Mount for Aimpoint Micro Standard is a user-defined height to configure you specific setup for your specific needs. 1/3 co-witness height is only with Aimpoint T-1/T-2/H-1/H-2 or other same optic housing height red dots