Shop › ALLEN VERTEX HYPR TOUGH SLNG BLK/GRY ALLEN VERTEX HYPR TOUGH SLNG BLK/GRY $19.99 Allen Company VERTEX Hyper Tough Sling, BAKTRAK Slip Resistant Backing, Matte Finish, Black and Gray, Includes Sling Swivels 8541 Add To Cart Added! Allen Company VERTEX Hyper Tough Sling, BAKTRAK Slip Resistant Backing, Matte Finish, Black and Gray, Includes Sling Swivels 8541