Custom Armor Group Rails - Helmet Accessory Ranger Green. CAGs advanced helmet configuration platform allows for the configuration of a unique and versatile rail attachment system which allows for the fast and effective attachment of secure headborne accessories such as audio video and lighting systems. CAG rail attachment is offered as an upgrade across the CAG line of advanced combat helmet systems and can be packaged with the low profile secure attachment shroud for NVGs on the front mount of helmet platforms. Features of Custom Armor Group Rails - Helmet Accessory ACH rail system Package Contents: Custom Armor Group Rails - Helmet Accessory Custom Armor Group RL-RG: Rails - Helmet Accessory Ranger Green