The boys from Milcomp visited us in order to test the APC556 PDW. Here is their review:
Revision Prescription (RX) Carrier with CONNECTOR for Desert Locust, Asian Locust and Wolfspider
In order to install prescription lenses inside the glasses or goggles, the RX carriers are needed.
Clips into Desert Locust, Asian Locust and Wolfspider.
All prices shown incl. taxes.