The lens nozzle assembly is the last component in the CO2mpact beam delivery system using 19mm diameter ZnSe lenses coated AR/AR. Four different focal lengths are available as standard; 38, 63, 100 and 127mm. The lens is mounted in a separate cell, which allows for easy removal and cleaning of both surfaces. Adjustment of the nozzle stand-off is independet, giving a total of ± 3 mm. The gas inlet is via a standard 6/4 pipe fitting.
| Part Number | Diameter | Length | Clear Aperture |
| C-LN38 | 38 mm | 60 mm | 17.5 mm |
| C-LN63 | 31 mm | 86.1 mm | 17.5 mm |
| C-LN100 | 31 mm | 122.9 mm | 17.5 mm |
| C-LN127 | 31 mm | 149.9 mm | 17.5 mm |