LBTEK offers two models of extended two-dimensional C-type open mirror mounts: AMML-05DL and AMML-1DL. The front plate is extended in design, with the optical component mounting surface reaching further beyond the front end of the mount, making it easy to accurately position mirrors or beam splitters into the optical path in scenarios where spacing between adjacent components is limited. The C-type opening features a semi-enclosed structure, effectively reducing obstruction of the light beam by the mount body and supporting smaller beam incident angles.

The mirror mount is made of 6061-T6 aluminum alloy with black anodized finish, and the surface matte treatment effectively reduces stray light. Both specifications use a unified 25.4 mm optical axis height, allowing interchangeability at the same post height in system designs and simplifying optical path alignment. Optical components can be secured at the C-type opening using the included M4 nylon-tipped set screw, and the bottom of the mount is equipped with an M4 threaded hole, compatible with standard optical posts.