The Definition of Flashbang (grenade)
A stun grenade, also known as a flash grenade, is a non-lethal explosive device used to temporarily disorient an enemy's senses.
It is designed to produce a blinding flash of light and intensely loud noise "bang" of greater than 170 decibels (dB)
without causing permanent injury. It was first developed by the British Army's SAS in the 1960s.
The flash produced momentarily activates all photoreceptor cells in the eye, making vision impossible for approximately five seconds,
until the eye restores itself to its normal, unstimulated state. The loud blast is meant to cause temporary loss of hearing,
and also disturbs the fluid in the ear, causing loss of balance.
The concussive blast of the detonation can still injure, and the heat created can ignite flammable materials such as fuel.
The fires that occurred during the Iranian Embassy siege in London were caused by stun grenades.
19 Other Firearms Definitions You Need To Know
A type rimfire rifle cartridge developed by the ammunition company Hornady.
.17 Hornady Magnum Rimfire (4.5×27mmR), commonly known as the .17 HMR, was developed in 2002.
It descended from the .22 Magnum by necking down the .22 Magnum case to take a .17 caliber (4.5 mm) bullet.
A shotgun, often with only a single relatively-long barrel, with relatively tight choke boring and a relatively high-combed stock used for shooting clay pigeons in the game of Trap,
where the birds are launched at least 16 yards ahead, usually rising and going away from the shooter at relatively low angular velocity.
To better absorb recoil, a trap gun is normally heavier than a field gun because one shoots a lot but walks only a little.
A device used to determine the range to a target. Many range finders work by bouncing a laser beam off the target or
nearby object and measuring the time for the reflection to arrive back at the instrument.
It is also possible to use various passive optical devices such as a mil-dot telescopic sight.
The amount of change in the bore axis, measured both vertically and horizontally, while the projectile moves from the chamber to the muzzle when it is fired.
Latin word meaning "for war." It is actually the proper name of the semiautomatic pistol commonly known in the USA as the "Luger.
Because of that pistol and the ammunition created for it, the common 9mm cartridge used nowadays is also known as 9mm Parabellum or 9mm Luger."
Ear muff or ear plug hearing protection that have internal electronics that amplify human voices while excluding all noises louder than a given decibel rating.
Electronic hearing protection is best used when shooting outdoors. When on an indoor range they have a tendency to pick up too much echo and other muffled sounds.
A rifle front sight with a extra-large, folding bead. Typically, in addition to the normal fine bead (which allows for more precision) the larger bead,
while at a cost of potential accuracy, is more readily acquired in marginal light. Also called a Gloaming sight
The beginning of the bore of a rifled firearm. The transition between the chamber and the rifling. The area most vulnerable to erosion from high velocity cartridges.
A railgun is an electrically powered electromagnetic projectile launcher based on similar principles to the homopolar motor.
Using a magnetic field powered by electricity, a rail gun can accelerate a projectile up to 52,493 feet (16,000 meters) per second.
A railgun consists of two parallel metal rails (hence the name) connected to an electrical power supply. When a conductive projectile is inserted between the rails (at the end connected to the power supply), it completes the circuit. Electrons flow from the negative terminal of the power supply up the negative rail, across the projectile, and down the positive rail, back to the power supply.
A sliding bar, running longitudinally through the watertable of a break-open side-by-side gun's action, with openings through which the
lumps of the barrels pass when the gun is closed. Under spring tension, this bar moves forward when the opening control is released and its
two locking surfaces engage complementary slots (bites) in the rear of the two barrel lumps. Originally operated by a hinged tab in front
of the trigger guard. Now invariably operated by a cam from Scott's [toplever] spindle. Most modern side-by-side guns lock closed in this manner.
On guns (mainly shotguns) that have two barrels, there is a trigger for each barrel that work independently from each other.
In the rifling of a bore, the uncut portions of the barrel's inner surface left after the rifling grooves have been cut into the metal. In other words, the raised portion of rifling.
Synonymous with "handgun." A gun that is generally held in one hand. It may be of the single-shot, multi-barrel, repeating or semi-automatic variety and includes revolvers.
The entire process of moving the trigger from its forward-most position to its rearward-most position, causing the hammer to fall and the shot to fire.
A fired case has marks upon it that it picked up from the extractor, ejector, and breechface of the gun when the shot went off.
A bullet fired through a rifled barrel also has rifling marks unique to the barrel that launched it. A record of these marks, when stored in a central database,
is called a ballistic fingerprint. Some states require this record to be made by law, so that individual guns can be located from bullets or casings found at the scene of a crime.
A popular term for a short barreled repeating shotgun as frequently used in law enforcement and personal protection.
The top of a gun's stock, where a shooter rests his cheek when mounting a gun.
As it is the top of the stock that determines the position of
one's eye, and one's eye is the rear sight on a shotgun, the position of the comb
is very important in determining the proper fit of a shotgun.
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