Chase Tactical Striker Series Ach-Arc Rail System w/Picatinny And Assembly Od Green. Chase Tacticals 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. Chase Tactical rail attachment is offered as an upgrade across its Striker line of advanced combat helmet systems and can be packaged with the WILCOX shroud for NVGs on the front mount of helmet platforms. (Picatinny or other accessories not included) Specifications for Chase Tactical Striker Series Ach-Arc Rail System w/Picatinny And Assembly: Manufacturer: Chase Tactical Size: One Size Condition: New Country of Origin: USA Package Contents: Chase Tactical Striker Series Ach-Arc Rail System w/Picatinny And Assembly Chase Tactical CT-STRIKER-423: Striker Series Ach-Arc Rail System w/Picatinny And Assembly Od Green