Having the same high performance components and characteristics as its acrylic brother... The Burnt Hedge Raptor Max offers a low end goose sounds that can only be found in a classic goose call design. The FP Mark 3 World Championship gut system is perfectly tuned in each call to create Canada goose sounds so realistic it will raise the hair on the back of your neck and big honkers will not be able to resist. Each call is hand tuned by 2 time World Goose Calling Champion, Field Hudnall, and comes with a Full Lifetime Warranty backed by Field Proven Calls.