Haydels Big Barrelled Cutdown Mallard. Aggressively tuned to handle most any situation you will encounter Specifications for Haydels Big Barrelled Cutdown Mallard BC10: Mfg Item Num: BC10 Supplier SKU: 62811 Category: GAME CALLS Type: Duck Call Species: Mallard Material: Acrylic The Haydels Big Barrelled Cutdown Mallard BC10 is a quality addition to the Haydels lineup. For more great deals on Duck Calls by Haydels please browse our Haydels Hunting Gear page.