11 Piece Powder Flask Spout Set, brass, 10-1mm thread to fit most common flasks - Track of the Wolf

Muzzle-loaders Brass Powder Flask Nozzle - 30 Grain Spout - MZ1400N : Sports & Outdoors

Muzzle-Loaders Brass Powder Flask, 100% Adjustable

Large powder horn base plug, 1/2-20 thread with bushing, brass, made in USA - Track of the Wolf

11 Piece Powder Flask Spout Set, brass, 10-1mm thread to fit most common flasks - Track of the Wolf

Muzzle-loaders Brass Powder Flask Nozzle - 30 Grain Spout - MZ1400N : Sports & Outdoors

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11 Piece Powder Flask Spout Set, brass, 10-1mm thread to fit most common flasks - Track of the Wolf

HA0330 Basket Weave Sporting Flask

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Flasks, Horns & Spouts

Flask Spout - 20 Gr - The Gun Works Muzzleloading Emporium

Large powder horn base plug, 1/2-20 thread with bushing, brass, made in USA - Track of the Wolf

Flasks, Horns & Spouts

Traditions Compact Field Tubular Powder Flask Valve Brass