Kolpin Gun Boot 4.3 with Bracket - 20053 Provides ample room for 50mm scope and even rifles with slings attached or shotguns up to 51" in length Includes Gun Boot case with removeable foam Impact liner and bracket Universal fitment to most ATV racks or UTV bedrails ;Mounts quickly and easily Designed to accommodate left and right hand bolt action rifles and shotgun Ergonomically designed handle for comfortable carrying. Molded attachment points for a sling.