Many modern military firearms have a selective fire option, which is a mechanical switch that allows the firearm be fired either in the semi-automatic or fully automatic mode.

Mexican HMMWVs are similar to the American built models but are slightly longer and feature a standard selective shift automatic transmission connected to a Mercedes Benz diesel engine and an anti-spalling layer in the passenger cabin.

Assault rifles are a compromise between the size and weight of a pistol-caliber submachinegun and a full size traditional automatic rifle by firing intermediate cartridges, ( or sometimes full power cartridges ) and allowing semi-automatic, burst or full-automatic fire options ( selective fire ), often with two or more of these available on the rifle at once.

The essence of ALE techniques is the use of automatic channel selection, scanning receivers, selective calling, handshaking, and robust burst modems.

In selective fire versions capable of fully automatic fire, the carbine is designated the M2 carbine.

While selective and automatic, the ability of the machinery to selectively access inertial references within their field envelope is both remarkable as well as puzzling, since with this technology it would be possible to successfully begin construction of trans-luminal vessels, including the Thistledown itself.

The M4 has selective fire options including semi-automatic and three-round burst ( like the M16A2 and M16A4 ), while the M4A1 has the capability to fire fully automatic instead of three-round burst ( like the M16A1 and M16A3 ).

Although automatic weapons and selective fire firearms do the same tasks, semi-automatic firearms do not automatically fire an additional round until the trigger is released and re-pressed by the person firing the weapon.

While all basic firearm actions require the action to be cycled manually before the first shot, semi-automatic as well as automatic and selective fire actions are differentiated from other forms such as single-action or double-action revolvers, pump-action, bolt-action, or lever-action firearms by eliminating the need to manually cycle the weapon after each shot.

CAD systems may be interconnected with automatic vehicle location systems, mobile data terminal s, office telephones, and Selective calling | selective calling and push-to-talk ID. Computer-assisted dispatch systems use one or more servers located in a central dispatch office, which communicate with computer terminals in a Communications Center or with mobile data terminals installed police vehicles.

The cannon is a single-barrel, high performance, breech-cylinder gun operated by a fully automatic electrically fired gas-operated system at a selective rate of 1000 or 1700 rounds per minute.

The TAR-21 ( or simply Tavor ) is an Israeli bullpup assault rifle chambered for 5. 56 × 45mm NATO ammunition with a selective fire system, selecting between semi-automatic mode and full automatic fire mode.

Many armed forces employ selective fire assault rifles such as the M16 Rifle and other small arms with a burst mode instead of, or in addition to, a fully automatic mode, to encourage soldiers to use effective fire techniques.

A selective fire firearm has at least one semi – automatic and one automatic mode, which is activated by means of a selector which varies depending on the weapon's design.

" These techniques included full-text processing ; hash codes ; Key Word in Context indexing ( see also Herbert Marvin Ohlman ); auto-indexing ; automatic abstracting and the concept of selective dissemination of information ( SDI ).

The AK-101 is a selective fire weapon that can be fired in either semi-automatic or fully automatic mode.

In some 2001 statistics, it is noted that there are about 420, 000 assault rifles ( fully automatic, or " selective fire ") stored at private homes, mostly SIG SG 550 models.

* Basically, the sale of automatic firearms, selective fire weapons and certain accessories such as sound suppressors (" silencers ") is forbidden ( as is the sale of certain disabled automatic firearms which have been identified as easily restored to fully automatic capability ).

Its relatively slow cyclic rate of fire, 550 shots per minute, and low recoil make it highly accurate during full automatic or selective fire.

Depiction of crossfireA crossfire ( also known as interlocking fire ) is a military term for the siting of weapons ( often automatic weapons such as assault rifles or sub-machine guns ) so that their arcs of fire overlap.

In 1966, the Portuguese created an experimental horse platoon, to operate against the guerrillas in the high grass region of the Eastern Angola, in which each soldier was armed with a G3 assault rifle to combat on foot and with an automatic pistol to fire on horseback.

The Angola Dragoons operated as mounted infantry – like the original dragoons – each soldier being armed with a pistol to fire when on horseback and with an automatic rifle, to use when dismounted.

* 1994 – Mosque of Abraham massacre: In the Cave of the Patriarchs in the West Bank city of Hebron, Baruch Goldstein opens fire with an automatic rifle, killing 29 Palestinian worshippers and injuring 125 more before being subdued and beaten to death by survivors.

It was neither a very reliable nor popular firearm, but it enabled a form of " automatic " fire long before the advent of the machine gun.

In the current M16A2 and M16A4 variants of the U. S .- made M16, continuous fully automatic fire is not possible, having been replaced by an automatic burst of three cartridges ( this conserves ammunition and increases controllability ).

An automatic weapon is generally defined as a firearm which continues to load and fire cartridges from its magazine as long as the trigger is depressed ( or until the magazine is depleted ).

Most automatic weapons are classed as long guns ( as the ammunition used is of similar type as for rifles, and the recoil of the weapon's rapid fire is better controlled with two hands ), but handgun-sized automatic weapons also exist, generally in the " submachine gun " or " machine pistol " class.

Because they fire pistol ammunition, they have limited long-range use, but in close combat can be used in fully automatic in a controllable manner due to the lighter recoil of the pistol ammunition.

An automatic rifle is a magazine-fed long gun, wielded by a single infantryman, that is chambered for rifle cartridges and capable of automatic fire.

This design was to become the model basis for the " assault rifle " subclass of automatic weapons, as contrasted with " battle rifles " which generally fire a traditional " full-power " rifle cartridge.

Generally, assault rifles have mechanisms that allow the user to select between single shots, fully automatic bursts, or fully automatic fire.

regulations in the U. S., it lacks the mechanism that permits fully automatic fire.

The mortar itself can fire on single shots or on automatic using 4 round clips.

A machine gun is a fully automatic mounted or portable firearm, usually designed to fire bullets in quick succession from an ammunition belt or magazine, typically at a rate of several hundred rounds per minute.

Nowadays the term is restricted to relatively heavy weapons fired from some sort of support rather than hand-held, able to provide continuous or frequent bursts of automatic fire for as long as ammunition lasts.

Some machine guns have in practice maintained suppressive fire almost continuously for hours ; other automatic weapons overheat after less than a minute of use.

Selective fire rifles firing a full-power rifle cartridge from a closed bolt are called automatic rifles or battle rifles, while rifles that fire an intermediate cartridge ( see below ) are called assault rifles.

The arm has an automatic weapon inside.

The Gatling gun may have been the first automatic weapon, though the modern trigger-actuated machine gun was not widely introduced until the First World War with the German " Spandau " and British Lewis Gun.

A machine gun is a fully automatic emplaceable weapon, most often separated from other classes of automatic weapon by the use of belt-fed ammunition ( though some designs employ drum, pan or hopper magazines ), generally in a rifle-inspired caliber ranging between 5. 56 × 45mm NATO (. 223 Remington ) for a light machine gun to as large as. 50 BMG or even more larger for crewed or aircraft weapons.

" Machine gun " is therefore largely synonymous with " automatic weapon " in the U. S. civilian parlance, covering all automatic firearms.

* Squad automatic weapon

Semi automatic long weapon models are required to be verified as civilian-legal before this category applies to them, otherwise they are considered category A.

Although the first Gatling gun was capable of firing continuously, it required a person to crank it ; therefore it was not a true automatic weapon.

The Maxim gun, invented in 1884, was the first true fully automatic weapon, making use of the fired projectile's recoil force to reload the weapon.

Some of their products include the MP5 submachine gun, G3 automatic rifle, the G36 assault rifle, the HK 416, the MP7 personal defense weapon, the USP series of handguns, and the high-precision PSG1 sniper rifle.

From the AKM he developed a squad automatic weapon variant, known as the RPK (-Kalashnikov light machine gun ), and also the PK (-Kalashnikov machine gun ), which used the more powerful 7. 62 × 54R of the Mosin-Nagant rifle.

According to U. S. Army doctrine, a machine gun is distinguished from an automatic rifle by how it is used: a machine gun is a crew-served weapon, while an automatic rifle is used by a single person.

The weapon featured automatic loading through ammunition being loaded in a hopper above the weapon.

* Squad automatic weapon

The term is a literal translation of Maschinenpistole, the German term for a hand-held automatic weapon firing pistol cartridges.

While the dividing line between machine pistols and compact submachine guns is hard to draw, the term " submachine gun " usually refers to larger automatic firearms scaled down from a full-sized machine gun to fire handgun rounds, while the term " machine pistol " usually refers to a weapon built up from a semi-automatic pistol design.

In the 2000s, the machine pistol started to be supplanted by the personal defense weapon: a compact, fully automatic submachine gun-like firearm which fires armour-piercing rounds instead of pistol ammunition.

In World War I, in the last year of the conflict, the Germans developed the Bergmann MP 18, a small, hand-held automatic weapon with a ' rifle-like ' form ( including a wooden stock ).