Kolpin Outdoors ATV Kolpin Gun Boot One Piece Bracket The Kolpin Outdoors ATV Gun Boot One Piece Bracket is engineered for a flawless fit on most metal tubular ATV racks. Featuring a robust metal pin-lock system, it ensures your Gun Boot IV or 6.0 case remains secure and free of rattles, even on the most rugged trails. Features: Fits Kolpin Gun Boot IV and Gun Boot 6.0 cases only (Sold Separately) Metal pin-lock attaches Gun Boot and prevents movement and vibration Installation and mounting hardware included Mountable to the metal tubular rack on either side of ATV Included Mounting Hardware: (3) 5/16 U-Bolt, (6) 5/16 Nylock Nut