The optic mount is Compatible with Hi Capas with pre-drilled lower receivers, such as our HX22 / 24 Series
or if you have our pre-drilled lower frame kit already included in the below set
SKU- AW-K01001
The Charging handle is compatible with Hi Capas after HX23 series Onwards (so HX23 - 27 etc) / Most TM Hi Cap slide cuts