Benelli M4

A member of the U.S. Marine Corps fires an M1014 shotgun as part of training in December 2006.

U.S. Marines fire their M1014s and Mossberg 500s.

Semi-automatic shotgun produced by Italian firearm manufacturer Benelli Armi SpA, and the last of the "Benelli Super 90" series of semi-automatic shotguns.

- Benelli M4

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Semi-automatic shotgun

Repeating shotgun with a semi-automatic action, i.e. capable of automatically chambering a new shell after each firing, but requires individual trigger-pull to manually actuate each shot.

Benelli M1014

Benelli Armi SpA

Italian firearm manufacturer best known for shotguns used by military, law enforcement and civilians, located in Urbino, Marche.

Benelli M4 Super 90 (M1014 combat shotgun)

Francesco Bruno with the Benelli Kite Olympic-class pre-charged pneumatic air pistol

In 1999, Benelli introduced the Benelli M4 Super 90, a gas-operated semi-auto shotgun intended for military and law enforcement.

Stock (firearms)

Also known as a shoulder stock, a buttstock or simply a butt, is a part of a long gun that provides structural support, to which the barrel, action, and firing mechanism are attached.

The anatomy of a gunstock on a Ruger 10/22 semi-automatic rifle with Fajen thumbhole silhouette stock. 1) butt, 2) forend, 3) comb, 4) heel, 5) toe, 6) grip, 7) thumbhole

An early hand cannon, or gonne, supported by a simple stock

M1 Garand rifle with one-piece wooden stock

SPAS-12 shotgun with a skeletonized folding stock

M16A1 cutaway rifle (top) and M16A2 (below) with a "straight-line" stock configuration

An M2010 Enhanced Sniper Rifle in a chassis system with adjustable buttplate and cheekriser

Gun stock construction on a lathe from the 1850s (photo circa 2015)

An Uzi submachine gun with a double-articulated folding stock

A bump stock allows semi-automatic firearms to shoot at a faster rate of fire that somewhat mimics fully automatic fire.

The Luger Artillery Pistol with its wooden holster attached

The CZ Škorpion with its folding wire stock extended.

A SIG MPX with a retractable Velcro-strap brace with two slide rods

Colt Army Model 1860 revolver with a wooden detachable stock

Ruger 10/22 International with full length Mannlicher-style stock

AK-47 with a three piece stock consisting of butt, grip and fore-end

Storage compartment inside a buttstock with opened trapdoor

Some telescoping stocks, such as those on the M4 carbine and Benelli M4, have more than one length of pull setting, allowing the stock to be adjusted for different users.

Los Angeles Police Department

Municipal police department of Los Angeles, California.

LAPD officers during an Occupy LA protest

An LAPD cadet conducting a handcuffing drill

LAPD SWAT officers breaching a room during a training exercise

The former Administration Building in 1976

LAPD Headquarters Building, opened in 2009.

An LAPD policeman armed with an AR-15 in 2011

Randal Simmons, the first LAPD SWAT officer to be killed in the line of duty, on February 7, 2008

As of 2014, SWAT's primary weapons were the Heckler & Koch HK416, M4 Carbine, and FN SCAR rifles; the Colt 9mm and HK MP5 submachine guns; the Armalite AR-10, Remington 700, Barrett M82, and M14 sniper rifles; and the Benelli M4 Super 90 and Remington 870 shotguns.

Combat shotgun

Shotgun issued by militaries for warfare.

Winchester Model 1897 Trench Gun with M1917 bayonet

Remington 1100 Tactical Shotgun in 12-gauge—holds eight 2" rounds in the tube

Confederate cavalryman with muzzle-loading shotgun

A group of US Marines in Iraq in 2005, armed with a combat shotgun, assault rifle, and squad automatic weapon

United States Marine carrying a Winchester M97 shotgun

A Mossberg 590 being used by a US Marine for door breaching in Karma, Iraq, in 2005

US soldiers in Tal Afar, Iraq, search for insurgents. The soldier in the foreground is carrying an assault rifle and a shotgun on a sling for breaching

A Mossberg 500 shotgun fitted with a grenade launcher adapter, shown holding a less lethal riot control grenade

A US soldier in Aksabah, Iraq, uses a pistol-grip shotgun to breach a locked door in a night operation

The Benelli M1014, seen in training use in Arta, Djibouti, late 2006

Even so, semi-automatic shotguns such as the Benelli M1014 are currently seeing service in NATO-aligned armed forces.

United States Army

Land service branch of the United States Armed Forces.

The storming of Redoubt No. 10 in the Siege of Yorktown during the American Revolutionary War prompted Great Britain's government to begin negotiations, resulting in the Treaty of Paris and Great Britain's recognition of the United States as an independent state.

General Andrew Jackson standing on the parapet of his makeshift defenses as his troops repulse attacking Highlanders during the defense of New Orleans, the final major and most one-sided battle of the War of 1812

The Battle of Gettysburg, the turning point of the American Civil War

U.S. Army troops assaulting a German bunker in France, c. 1918

U.S. soldiers hunting for Japanese infiltrators during the Bougainville Campaign

U.S. Army soldiers observing an atomic bomb test of Operation Buster-Jangle at the Nevada Test Site during the Korean War

US tanks and Soviet tanks at Checkpoint Charlie, 1961

A U.S. Army infantry patrol moving up to assault the last North Vietnamese Army position at Dak To, South Vietnam during Operation Hawthorne

U.S. Army soldiers preparing to take La Comandancia in the El Chorrillo neighborhood of Panama City during Operation Just Cause

M1 Abrams tanks moving out before the Battle of Al Busayyah during the Gulf War

Iraqi tanks destroyed by Task Force 1-41 Infantry during the Gulf War, February 1991

U.S. Army Rangers taking part in a raid during an operation in Nahr-e Saraj, Afghanistan

U.S. Army soldiers with the 2nd Battalion, 327th Infantry Regiment, 101st Airborne Division returning fire during a firefight with Taliban forces in Barawala Kalay Valley in Kunar province, Afghanistan, March 2011

Organization of the United States Army within the Department of Defense

U.S. Army soldiers of the 1st Battalion, 175th Infantry Regiment, Maryland Army National Guard conducting an urban cordon and search exercise as part of the army readiness and training evaluation program in the mock city of Balad at Fort Dix, New Jersey

U.S. soldiers from the 6th Infantry Regiment taking up positions on a street corner during a foot patrol in Ramadi, Iraq

The 1st Cavalry Division's combat aviation brigade performing a mock charge with the horse detachment

U.S. Army Special Forces soldiers from the 3rd Special Forces Group patrolling a field in the Gulistan district of Farah, Afghanistan

U.S. Army Rangers practicing fast roping techniques from an MH-47 during an exercise at Fort Bragg

A trainer with Company A, 1st Battalion 502nd Infantry Regiment, Task Force Strike, 101st Airborne Division assisting Iraqi army ranger students during a room clearing drill at Camp Taji, Iraq on 18 July 2016

U.S. Army soldiers familiarizing with the latest INSAS 1B1 during exercise Yudh Abhyas 2015

A Lockheed Martin Terminal High Altitude Area Defense (THAAD) system used for ballistic missile protection

A U.S. soldier on patrol in Iraq with the support of a Humvee vehicle

3rd Infantry Division soldiers manning an M1A1 Abrams in Iraq

An element of the 18th Infantry Regiment, wearing ASUs, representing the United States at the 2010 Victory Day commemoration in Moscow

The Ranger Honor Platoon marching in their tan berets and former service uniform

The M1014 Joint Service Combat Shotgun or the Mossberg 590 Shotgun are used for door breaching and close-quarters combat.

Special Detective Unit

Main domestic security agency of the Garda Síochána, the national police force of the Republic of Ireland, under the aegis of the Crime & Security Branch (CSB).

A member of the elite Garda ERU on armed patrol in Dublin

A close protection officer from the Special Detective Unit protecting Queen Elizabeth II in 2011

Benelli M4 Super 90 (12 gauge semi-automatic shotgun)

Garda Armed Support Unit

Armed Support Units (ASU) (Tacaiochta Faoi Arm) are specialist armed response units of the Garda Síochána, the national police force of Ireland.

Benelli M4 Super 90 semi-automatic shotgun

Military Police of São Paulo State

Law enforcement agency (Military Police (Brazil)) of the military kind in the state of São Paulo, Brazil.

Graduation of Lieutenants at the Barro Branco Military Academy, of the Military Police of the São Paulo State.

Mounted Police officers in São Paulo, Brazil.

Benelli M4

United States Army Special Forces

The United States Army Special Forces (SF), colloquially known as the "Green Berets" due to their distinctive service headgear, are a special operations force of the United States Army.

Special Forces soldiers from Task Force Dagger and Commander Dostum on horseback in the Dari-a-Souf Valley, Afghanistan, circa October 2001—featured in the film 12 Strong and the Horse Soldier Statue

ODA 525 team picture taken shortly before infiltration in Iraq, February 1991

Soldiers from each of the Army's seven Special Forces Groups (note seven different colors of beret patches) at the gravesite of President John F. Kennedy in November 2011.

A MH-60L from 160th SOAR deploys an ODA from 7th SFG(A) onboard a U.S. submarine for a joint exercise

A SF company commander in Universal Camouflage Pattern meets with elders and members of the 209th ANA Corps in Helmand Province, Afghanistan, circa 2007

A soldier from A Co, 1st Bn, 7th SFG(A) gives an Afghan boy a coloring book in Kandahar Province during a meeting with local leaders, circa 2008

A Special Forces candidate conducts a pre-mission rehearsal with role-playing guerrilla fighters during ROBIN SAGE.

Soldiers from 1st Special Forces Group conduct high-altitude low-opening (HALO) jump over Yakima training center, c. 2014

20th Special Forces Group soldiers conduct dive operations

Special Forces soldiers prepare for a combat diving training operation on a US Naval ship near Okinawa, Japan in 1956, wearing their green berets

Special Forces soldiers participate in the graduation ceremony in Tegucigalpa, Honduras in 2014, wearing their green berets

Special Forces distinctive unit insignia

A GMV-S equipped with a Mk 19 grenade launcher in Afghanistan (2003)

GMV 1.1 equipped with a Mk 19 driven by Army Special Operation operators with the 3rd Special Forces Group Green Berets.

A 19 SFG (A) operator mans an M60 machine gun on a GMV variant Humvee in Afghanistan in March 2004. An AT4 anti-armor rocket launcher can be seen in the foreground.

A 5th SFG (A) operator on the Humvee's turret ring explains to a girl how the M2 .50-caliber machine gun with an EOTech black SU-264/PEQ（ECOS-H）holographic weapon sight on the picatinny rail works

"Code of the Special Forces Operator", c. undefined 1959. This example pre-dates "Delta" among others.

Current structure of the 20th SFG (A) (ARNG)

M1014