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Airsoft is a sport in which players use airsoft guns to fire plastic projectiles at other players in order to eliminate them. Due to the often-realistic appearance of airsoft guns and their ability to fire projectiles at relatively high speeds, laws have been put in place in many countries to regulate both the sport of airsoft and the guns themselves.
The Daewoo Telecom K7 is a 9×19mm Parabellum submachine gun with an integral suppressor used by the Republic of Korea Armed Forces.It is based on the Daewoo K1A assault rifle, but is simplified by utilizing a blowback action rather than the gas impingement system of its parent firearm.
Airsoft pellets (known as BBs) are spherical projectiles used by airsoft guns. Typically made of plastic , [ 1 ] they usually measure around 6 mm (0.24 in) in diameter (though selective models use 8 mm), [ 1 ] and weigh 0.20–0.40 g (3.1–6.2 gr), with the most common weights being 0.20 g and 0.25 g, while 0.28 g, 0.30 g, 0.32 g and 0.40 g ...
A silencer, also known as a sound suppressor, suppressor, or sound moderator, is a muzzle device that suppresses the blast created when a gun (firearm or airgun) is discharged, thereby reducing the acoustic intensity of the muzzle report (sound of a gunshot) and jump, by modulating the speed and pressure of the propellant gas released from the ...
The foam zone acts as an insulator slowing the rate of heat transfer from the flame zone into the unreacted solid. Reaction rates vary with pressure; because the foam allows less effective heat transfer at low pressure, with greater heat transfer as higher pressures compress the gas volume of that foam.
If the foam weapon is to be an axe, a head carved out of open-cell foam may be affixed. Additional layers of closed-cell foam can be used to define a blade of a sword, the hilt of a dagger, or the soft foam "spikes" of a club. Foam weatherstripping is commonly used to better define a "cutting blade" as opposed to electrical tape.
Newer technologies have brought advances like inert foam-filled tanks to prevent detonation. This foam is an open cell foam that effectively divides the gas space above the remaining fuel into thousands of small spaces, none of which contain sufficient vapour to support combustion. This foam also serves to reduce fuel slosh.
The AR-7 uses a blowback semi-automatic action in .22 Long Rifle but retains the AR-5/MA-1 feature of storing the disassembled parts within the hollow stock, which is filled with plastic foam and capable of floating. [4] [5] Like the bolt-action AR-5, the AR-7 was designed as a survival rifle for foraging small game for food. The AR-7 is ...