this is the tall tower, the tall optic slides into this part. the tall tower is held in place by the tower base.
tall tower is about 2-3/8th tall
if building a set of ecto goggles using our parts you will need
1 short optic,
1 tall optic
1 tall tower
1 short tower
2 tower bases
4 thumb screws and bases
and a mounting frame which is optional.