CamelBak CBR-X Protective Mask Adapter, NSN 8465-01-517-4773 (90522), Type M -- For Millennium, M17, M40-M42 Series, MCU2P, M70 Series, and C4 (Canada) - The ArmyProperty Store
US Military Issued CamelBak Protective Mask Adapter Kit SKU:9700 "NEW" | eBay