Optical Sight
Optical sight are used as a pair and allow alignment portable or permanent TIRTL installations.
Riser Block
A riser block is required for the alignment of a TIRTL in a permanent housing. It mounts to the alignment plate, and allows the optical scope to clear the housing walls and allow alignment of the TIRTL.
Optical Sight Kits
Optical sight kit includes two optical sights, riser blocks, and carry cases and is suitable for portable or permanent alignment.