Area 419 Arcalock Barricade Stop Black. Specifications for Area 419 Arcalock Barricade Stop: Manufacturer: Area 419 Color: Black Fabric/Material: Aluminum Length: 6 in Width: 2 in Height: 3.5 in Material: 6061-T6 Country of Origin: USA Weight: 0.5 lb Features of Area 419 Arcalock Barricade Stop Bolt pattern is same as Atlas bipod and can be sandwiched between clamp and bipod Can also be run standalone on a clamp with included hardware Teeth on front dig into barricade for ultimate grip Package Contents: Area 419 Arcalock Barricade Stop Area 419 419-ALK-BCADE: Arcalock Barricade Stop Black