What are the 5 most common guns in the world?

Answer 1

Automat Kalashnikov model 47 is the most common, chambered in 7.62mm x 39mm. It was produced by the Soviet Union, which supplied it to its constituents and allies, as seen during the Cold War, and in the Korean and Vietnam wars. Then upon the collapse of the Soviet Union, the massive surpluses were sold to other parts of the world at extremely low prices. This has led to it being the favored weapon of many insurgent groups, home-defense weapons in the violent societies where it is available, and for armies of nations with low domestic product. The current Russian Army uses an updated, polymer model of the same operating system, known as the AK-107 and AK-108. In the United States, fully-automatic weapons are controlled almost everywhere, and the AK-47 is no longer imported due to various treaties.

The Stoner AR-15 is another common model, produced by the United States as the M16 and M4. A similar surplus problem occurred during the Vietnam War era, and again whenever the A3 and A4 models were produced. Older models, or anything that would mean transporting fewer humans out of the war, were sold or left to be picked up at random. The United States still uses the M16A3, M16A4, and the M4A1 models of the AR15 platform, and the civilian sector has many look-alike, semi-automatic models (often with interchangeable parts). The AR-15 series fires 5.56mm NATO or .223 Remington rounds, depending on the manufacturer's intended market.

Another extremely common model is the 1911 pistol. Colt, Springfield, Kimber and many other brands make this style in .45 "Automatic Colt Pistol".

Heckler and Koch MP5 is used by Navy SEALS, Marine Force Recon, German Border Patrols, British SAS and SBS and Police SWAT teams. It is hailed as the "Rolls-Royce of SMGs" for its low recoil, high accuracy, field reliability, and somewhat cynically, difficulty to repair. It fires the 9 mm Parabellum round, which is also common in pistols used by police forces of the United States, Federal Agencies, Militaries of the world, and civilians.

The MP5-series' place is debatable with the Israeli UZI-series of sub-machine guns, which, according to Wikipedia, "Uzi submachineguns were sold to more military and police markets than any other submachine gun ever made," so it may actually be more common than the MP5-series "in the world" (as the question was phrased), but English-speakers are more likely to encounter an MP5-series weapon, as they are more popular in the United States and Great Britain than the UZI-series.

.308 Winchester and its NATO counterpart, 7.62mm x 51mm NATO, are common rounds for long-range marksmen, including SWAT team snipers, Military Snipers, Competitive marksmen and deer hunters (though less common in hunting as the civilian version is less effective than other hunting round choices, though the military-grade version of the cartridge). The most common action used is the Remington R700, which is modified for the US Army's M24 sniper system, and the US Marine Corps' M40A3 Sniper Weapon System, but many other models are used, like the HK G3, Springfield M14/M1A, and the new SCAR-H/SCAR-17 series of rifles by Fabrique Nationale.

.22 Long Rifle is a common round, but the models used to fire the round vary greatly, and are often used for target practice and competitions with rifles (such as the Olympic Biathlon), and in compact pistols. There is no dominating model which fires this caliber, but the significance it carries in popularity and in seniority (as the both the oldest and most common round currently produced).

In the case of these last two, the round fired is more documented than a specific weapon firing it. In addition to these worldly weapons, it is worth noting that in the United States, hunters often use 20-gauge shotgun, 12-gauge shotgun, .30-06 Springfield and .30-30 Winchester, depending on the prey. Handgun owners favor 9mm Parabellum, .40 S&W, .45 ACP in autoloaders, and .357 Magnum, .38 Special, and .44 magnum in revolvers. As previously mentioned, .22 Long Rifle is extremely common for target practice, and is often suggested as a great caliber to start with.

The 4 most common assault rifle models distributed around the world are the AK47 series, the G3 series, the FAL series, and the AR15 series. The last three are not in order of prevalence.