• Gun & Rifle Sales

    We sell a wide range of guns, rifles, calibers and other firearm weapons. Come visit our Mills, Wyoming store front to see what we have available.

  • Ammunition

    Find ammunition for any weapon type from older to new models.


Powder River Armory | Firearms, Ammo & Accesories
Casper, WY | (307) 337-1623

At Casper, Wyoming’s Powder River Armory, we carry handguns, rifles, and shotguns from all popular manufacturers, as well as magazines and accessories. We specialize in self-defense handguns and modern sporting rifles, but have the capability to special order anything you are looking for and have it in the store quickly.

Our selection of guns and rifles is one of the largest in Casper, WY, including large retail stores. We take time to care for our customers and help them understand their rifles and accessories and to better understand and care for the equipment. We have the knowledge and experience to help you make the right decision concerning your firearm or accessory purchase and take time with our customers to make sure they are 100% satisfied.

We truly are the premier destination for all things related to guns and ammunition in Casper and the surrounding areas.

Don’t risk purchasing a product that isn’t what you really want or spend money on a repair that doesn’t correct the problem. Visit our Facebook page to view our products or stop by in person at storefront located on Yellowstone Highway in Casper, WY. Contact us to learn more about our guns and other products.

  • Powder River Armory

    4658 W Yellowstone Hwy
    Mills, WY 82604

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    Call Us
    Phone: 307-337-1623

    Hours
    Mon: Closed
    Tue: 11:00AM-6:00PM
    Wed: 11:00AM-7:00PM
    Thu: 11:00AM-7:00PM
    Fri: 11:00AM-7:00PM
    Sat: 10:00AM-6:00PM
    Sun: Closed