Retail store and online retail store services featuring binoculars, gun scopes, rifle scopes, and spotting scopes, clothing, firearms and parts thereof, rifles and parts thereof, carbines and parts thereof, military rifles and parts thereof, pistols and parts thereof, handguns and parts thereof, custom-built gas operated semi-automatic competition and tactical rifles and parts thereof, firearms trigger assemblies, firearm gas system blocks, firearm barrel heat sinks, firearm bolt carriers in particular low mass firearm bolt carriers providing minimum recoil, firearm hand guards, firearm muzzle compensators, tactical compensators, upper firearm assemblies, center fire and rim fire upper rifle assemblies, gun sights, double ring gun sights, detachable firearm sights, non-telescopic dot reflex gun sights and dot reflex gun sights mounting adapters, firearm anti-cant devices, case gages, handgun components, magazines for weapons, cases for weapons, cases for rifles, carbines, guns, pistols, revolvers, and handguns, firearm slings, firearm tactical rails, holsters, noise suppressors for weapons, noise suppressors for firearms, shoulder straps for weapons, ammunition