Primos Hunting Moose Horn 12ft Game Call Black. The Moose Horn reproduces the mating call of an Estrus cow. Specifications for Primos Hunting Moose Horn 12ft Game Call: Manufacturer: Primos Hunting Color: Black Species: Moose Features of Primos Hunting Moose Horn 12ft Game Call Open-reed style is 100percent FREEZE PROOF Unique hose in horn design automatically reproduces the deep guttural moans of rutting cows in Estrus Package Contents: Primos Hunting Moose Horn 12ft Game Call Primos Hunting 919: Moose Horn 12ft Game Call Black