Maine Gun Dealer Firearms Shop Buy Guns at Allsport Performance Inc in Hermon, Maine gun shop located in Hermon, Maine near Bangor. Firearms dealer. Selling new and used guns, ammo, reloading, and accessories at low prices We Buy Sell Trade. We buy estate collections and offer Free Appraisals. Compare us with all Maine gun dealers, Maine gun shops or Maine gun stores, trading post, armory, or outdoors shop. We stock ammo and accessories. We offer 20 dollar FFL transfers on guns in Maine. Best Gun Shop in Maine We buy antique, Civil War, wwi, wwii military, vintage, and mod.