Buck Gardners C3 Polycarbonate Duck Double Reed Call - The C3 Double Reed has been given an updated look for 2021. The C3 is now available with a Diamondwood barrel while still having the same great sound of the original C3 with an all new look. The C3 is an all-purpose call with mid-range volume and tone with just a little bit of rattle built in. This call is based on one of Buck's original tone boards. Diamondwood/Poly Construction J-Frame Double Reed Mid-Range Volume Threaded Aluminum Band