BB Machine Guns
Airsoft equipment consists of many varieties of equipment including the airsoft gun used to fire airsoft pellets, safety goggles, vests, equipment holders and gun accessories etc. The guns used in airsoft are normally copies of real firearms. Airsoft guns are classified as spring, electric or gas-powered. The gun is selected according the performance level such as battery life, magazine capacity and range.
BB guns are a type of air gun made to shoot spherical projectiles called BB's after the Birdshot pellet of nearly same size. They can be pointed, but they are usually used for bird hunting. Recent BB guns have a barrel of a bore diameter - 4.5 mm. They are made up of steel plated with zinc or copper to prevent from corrosion and are 4.34-4.39 mm in diameter. Some manufacturers also make lead BB's of slightly large diameter which are generally used in rifled BB gun barrels. Some Asian companies produce plastic BB's for recreational purpose.
There is a craze amongst youths about using machine guns. Now, BB machine guns are available for you and you can use them in airsoft games. The principle of machine gun is very simple to understand. It consists of number of barrels situated in a cylinder. Each barrel has a firing pin and breech. In old machine guns, you have to turn the crank which rotates the barrels in the cylinder. As each barrel reaches the top, it passes below a carousel magazine. Then, a new cartridge comes and the barrel is loaded.
Each firing pin has a tiny cam head to catch the grip of a slanted channel in the gun. As each barrel revolves around the cylinder, the groove drags the pin backward to push a tight spring. After a new cartridge is loaded into the breech, the pin cam slides out of channel and the spring forces it forward. The pin strikes the cartridge and fires the bullet.
In today's machine guns, they use the power of the cartridge explosion for reloading and re-cocking the gun after each shot. There are 3 basic methods for harnessing the power and they are Recoil system, Blowback system and Gas mechanism.
Now, you can enjoy this technically advanced type of gun in your airsoft guns. There are many varieties of airsoft machine/automatic guns on the market. E ach type and model has a different range in power, magazine capacity, FPS (feet per second) and ROF (rate of fire). Electric powered airsoft guns or automatic electric guns (AEGs) seem to be the most popular because of their high power and ease of use. The three biggest manufactures of automatic airsoft guns are Tokyo Marui, Classic Army and ICS (I Chih Shivan Enterprise Co. Ltd.). Tokyo Marui has one of the best and most popular airsoft machine guns and their products now dominate the world market. Prices range from 200 to 400 dollars, approximately. The more popular models include AK series such as AK47, AK47 Spetznatz; MP series like MP5 A4, Tokyo Marui MP5SD5, Tokyo Marui MP5SD6, Full Metal UZI, Tokyo Marui SG 552 SEALS and MP5K-PDW. Most of these models come with a rechargeable battery, 280 300 FPS (feet per second), and ROF (rate of fire) range from 600-900 rounds per minute. Classic Army, the airsoft gun company based in Hong Kong, has also produced a range of popular airsoft machine gun models. The MP5 series is very popular with cost ranging approximately 250-300 dollars. For example, the Classic Army MP5SD6 cost s around 325 dollars and features full Metal Body, detachable silencer, Collapsible Stock, 8.4V mini battery, 315 FPS and 200 round high capacity magazine. ICS, based in Taiwan is also another big manufacturer of automatic electric guns (AEGs) and airsoft machine guns. The company markets the AK, M16 and MP5 series of airsoft guns. Prices range between 250-350 dollars. One of the most popular is the ICS MP5A4 Tactical RIS which features 230 round magazine, Navy style lower receiver, tactical RIS, grip, & and a sight mount with an FPS of 310.