Primos Hunting Calls. The Freak is the perfect call for those times when you wish you could keep on calling and still have your gun in the ready position. You can strap The Freak to your leg or gun stock for easy one-handed operation! Frictionite is a porous material that gives a strong sound and requires less conditioning than most slate-style calls. The Freak with Frictionite produces low subtle soudns, great for early morning soft yelps and close-in calling, yet loud enough for cuts and cackles. It includes the GraveDigger Stricker, strap for gun or leg, abrasive sand paper, and protective snap-on lid. Primos Model No. 226. Primos Hunting Calls.