Pistol is one.
Non adjustable blade sight.
Rifles are mostly 5.56 and handguns are 9mm. There are other calibers that are used, but those are the most common.
Rifles have bolt actions and I've never seen a bolt action on a shotgun or handgun
Yes, handguns have a serial number.
Iron sights are the most common an are sometimes interchangeable.
Very common. The .22 pistol is a very popular target and training firearm, and is a sizable part of the handgun market. There are about 10 in my collection.
Yes, handguns were used in WWI, and WWII.
As with MOST states in the US, Oregon does not require registration of ordinary rifles, shotguns or handguns. Common misconception.
Police detectives carry handguns. Glock, Sig and H&K are common brands.
That's a very difficult question to answer because, of course, any caliber can kill. Smaller caliber handguns are fairly common in crime involving handguns because people believe large handguns are too diffucult to conceal. Most major police agencies in the U.S. use 9mm or .40 caliber handguns. It's also difficult to answer because information on caliber used in homicide and other crimes isn't readily available.
Manufacturers Beretta Browning CZ USA Leupold Remington Ruger Savage Arms Smith & Wesson Springfield Taurus Handguns SIG Sauer Smith & Wesson Glock Springfield Armory Walther Hi-Point Colt Handguns FN Herstal Kimber Heckler & Koch Kel-Tec Handguns Para Ordnance Taurus Bersa Handguns Beretta Ruger Magnum Research Wilson Combat Nighthawk Customs Kahr Arms American Tactical Imports Armalite Handguns Auto Ordnance Bond Arms Braztech-Rossi Handguns Browning Handguns Buds Spectacular Snubbies Calico Handguns California DOJ Legal Guns Charter Arms Cimarron Cobra Firearms Comanche Concealed Carry Pocket Pistols Cowboy Action Shooting Custom Hi Performance 1911s CZ USA Daly Handguns Diamondback Firearms Doublestar European American Armory Guns for the Ladies Heritage Inter Ordnance ISSC Les Baer Custom Masterpiece Arms North American Arms Para Ordnance Super Sale Remington Handguns Rock Island Armory Rohrbaugh STI TCA Thompson Traditions Bushmaster Pistols Freedom Arms Mauser Savage Handguns Steyr Other Handguns
Most historians believe handguns were first invented in the mid 1400s.