The Primos Magnum Roar is sure to get you noticed by the big, aggressive bucks in your heard. This deer call was designed to produce deep, loud and accurate grunts and roars. The challenge wheeze chamber lets deer know that you aren't messing around. This call is particularly useful during the pre-rut and rut phase. The reed is constructed to be freeze-proof, ensuring it won't let you down in cold weather. Hit this call and get your bow ready. Mr. Big is likely headed your way.