Phelps Alpha Pro Buck Grunt Deer CallThe Alpha Pro uses components constructed in the good old USA. Again, we go back to a machined acrylic barrel, but this time we use a different type of internal reed system thats tuned to produce aggressive grunts that will challenge any bucks dominance. Speaking of the reed, we install a specialized rivet into the reed to create momentum, preventing the reed from locking up from condensation. The custom tube bellows, smooths out the calls authentic