GoPro Camera Mounts - GoPro Sportsman Mount - Gun. Rod. Bow - Black :: Unisex > Actions Camera. Clamp can attach to any shotgun. rifle. pistol. paintball and airsoft barrels (410 - 8 gauge in size)Clamp also attaches to an archery bow and can withstand recoil without noticeable shifting positionSportsman Mount is incredibly strong and stable and provides a variety of mounting optionsIncludes: 1 short extension. 1 Hero3 waterproof and skeleton backdoor. 1 slim waterproof and slim skeleton backdoor Size: one size.