Located in Edinboro, The Keystone Armory provides Erie County and the surrounding areas with the largest selection of top brands in the firearms industry. It's a clean, friendly, non-intimidating environment for beginners or experienced shooters and collectors to buy, sell and trade. The Keystone Armory has become a favorite destination for many as it's your one-stop shop for pistols, rifles, shotguns, ammunition, suppressors, holsters, slings, cleaning & reloading supplies, accessories, and much more!