Primos Hunting Calls. Coax 'em in, love 'em and mow 'em down with the True Triple. Designed especially for the experienced caller who knows what he wants, the True Triple does it all, from soft to loud with raspy tones! It's the BIG Mack of the mouth calls and with its three frames it's now for everybody. If you can use it...It's GAME OVER! Stacked triple-frame, three thin prophylactic reeds--one in each frame. Primos Model No. 109. Primos Hunting Calls.