What Guns Do U.S. Army Green Berets Use? A Guide to Their Weapons

U.S. Army Green Berets do not carry one universal set of guns. Their weapons depend on the mission, unit, available equipment, and individual role. Publicly documented options include M4-family carbines, machine guns such as the M249 and M240, precision rifles, and the M17 or M18 pistol. Some units may also use newer rifles or specialized systems. The details change over time, and not every weapon is issued to every team. This guide explains the best-known firearms associated with Army Special Forces and how they fit into the broader equipment picture.

Why Green Berets Do Not Use Just One Rifle

“Green Beret” is the common name for a member of the U.S. Army Special Forces. The Army organizes Special Forces into groups and operational detachments whose assignments can vary widely. A team may train and operate alongside partner forces, conduct reconnaissance, or support other special operations missions. Those different tasks create different equipment needs.

Weapons selection can depend on the mission, the operating environment, unit requirements, and the availability of approved equipment. A rifle carried during a training exercise may differ from one shown in a public photograph of another team. Weapons can also be fitted with different sights, lights, suppressors, stocks, and other accessories. As a result, a list of commonly associated guns is more accurate than a claim that every Green Beret carries the same model.

Publicly available information also has limits. The military does not publish a complete, continuously updated inventory of what every Special Forces unit carries. Specific configurations and mission details may not be public. The models discussed below are therefore examples documented in U.S. military materials or widely associated with Army Special Forces—not a definitive list of current issue items for every team.

Common Rifles and Carbines

M4 and M4A1 Carbine

The M4 family is a familiar U.S. military carbine and one of the firearms most commonly associated with Army Special Forces. Chambered for 5.56×45 mm NATO ammunition, it is lighter and shorter than a full-length rifle, making it easier to handle in vehicles, buildings, and other confined spaces. Its modular design also allows approved accessories to be fitted for specific roles.

The M4A1 is a fully automatic version of the M4 platform. In public images and reporting, Special Forces personnel have been seen with M4-family carbines equipped with optical sights and other accessories. Exact configurations vary. A visible accessory or a particular barrel and stock arrangement does not necessarily mean it is used by every team or in every situation.

Specialized M4 Variants

Some Special Forces weapons have been associated with the SOPMOD (Special Operations Peculiar MODification) program, which supplies components intended to adapt M4-family carbines for operational use. The program is best understood as a set of compatible equipment and configurations, not a single separate rifle. Depending on the setup, components can include optics, illumination, aiming devices, and sound suppressors.

These additions can improve a weapon’s fit for a particular task, but they do not make every configuration identical. Accessories add weight and require training, maintenance, and logistical support. A carbine set up for one use may not be the preferred arrangement for another.

Other 5.56 mm Rifles

Army Special Forces have also been photographed or reported using other 5.56 mm rifles in particular contexts. The FN SCAR-L, known in U.S. military service as the Mk 16, is one example associated with special operations forces. Public accounts indicate that the program’s role and adoption have changed over time; it should not be described as a universal or current standard Green Beret rifle.

It is important to distinguish a weapon’s association with special operations from proof that all Special Forces teams regularly use it. Different units, procurement decisions, and mission requirements can lead to different equipment. The M4 family remains the clearest example of a widely recognized carbine in public accounts of Green Beret weapons.

Machine Guns for Team-Level Firepower

M249 Squad Automatic Weapon

The M249 is a 5.56 mm light machine gun used by U.S. forces to provide sustained, team-level fire. It can feed from linked ammunition or compatible magazines, although its handling and role differ from those of a standard rifle. In a small unit, a machine gun provides a source of greater sustained fire than a typical carbine.

The M249 is not simply a rifle that every person on a team carries. It is a crew-served or team-support weapon assigned according to the unit’s needs and organization. Its ammunition, weight, and support requirements affect how it is carried and employed.

M240 Machine Gun

The M240 is a 7.62×51 mm NATO machine gun used in several configurations across the U.S. military. Compared with the M249, it fires a larger cartridge and is heavier. It can provide more range and greater projectile energy, but it requires more ammunition and imposes a heavier load on the team.

Green Berets may use an M240 in a role that calls for heavier supporting fire, including from a vehicle or a fixed position. The weapon’s presence depends on the mission and the unit’s plan; it is not a personal weapon carried by every Special Forces soldier.

Precision Rifles and Sniper Systems

Special Forces may include soldiers trained for precision shooting, but a precision rifle is a role-specific tool rather than a standard rifle for the entire team. Publicly documented U.S. military systems associated with precision shooting include the M110 Semi-Automatic Sniper System and the Mk 13 series. Other rifles may be used depending on service, unit, and mission.

The M110 is a 7.62 mm semi-automatic precision rifle. Its semi-automatic operation allows a trained shooter to make follow-up shots without manually cycling the action after each round. The Mk 13 is a bolt-action precision rifle family associated with U.S. special operations and other military users. Specific models and configurations have changed over time, so descriptions should be tied to a particular period or source.

Precision shooting depends on more than the rifle. Optics, ammunition, environmental conditions, observation, and extensive training all matter. A sniper or designated precision shooter’s equipment is selected for a task and should not be treated as representative of the weapons carried by every Green Beret.

Pistols: The M17 and M18

The U.S. military selected the SIG Sauer P320-based M17 and M18 as its Modular Handgun System. The M17 is the full-size model, while the M18 is the more compact version. Both are chambered in 9×19 mm and use a modular design. Army materials identify the M17 and M18 as service pistols, but that does not mean every Green Beret carries one on every mission.

A pistol is generally a secondary firearm, not a substitute for a rifle or machine gun. Whether it is carried can depend on assignment, equipment policy, and operational requirements. Earlier U.S. military pistols, including the Beretta M9, are also relevant when discussing past service and transitions; they should not be presented as interchangeable with the current M17/M18 program.

Shotguns and Other Specialized Firearms

Shotguns such as the Remington 870 and Benelli M4 have been used in U.S. military settings for specialized purposes. They may be selected for tasks that call for a shotgun’s particular capabilities, but they are not the standard primary firearm for a Green Beret. Public references to a shotgun in a military context do not establish how often a specific Special Forces unit uses it today.

Likewise, some weapons frequently mentioned in online lists belong to other military services, other special operations units, or earlier procurement programs. A firearm’s appearance in a photograph or its inclusion in a defense-industry article does not by itself confirm routine Army Special Forces use. Reliable descriptions identify the model, the timeframe, and the source of the claim.

How Ammunition and Accessories Shape the Setup

Weapon type is only part of the picture. Ammunition affects a firearm’s weight, range, and role. Common U.S. military rifle and machine-gun cartridges include 5.56×45 mm NATO and 7.62×51 mm NATO. Handguns in the M17/M18 program use 9×19 mm ammunition. These cartridges serve different purposes and are not interchangeable.

Optics can range from non-magnifying sights to magnified scopes, depending on the weapon and task. Other possible accessories include slings, weapon lights, suppressors, and aiming devices. Their use is governed by equipment availability, policy, training, and mission requirements. Not every accessory is suitable for every weapon, and equipment choices can change the firearm’s weight and maintenance needs.

Suppressors, in particular, do not make firearms silent. They reduce the sound and muzzle effects of firing, but they do not eliminate noise. Their practical value and use depend on the circumstances, approved equipment, and the shooter’s training.

At-a-Glance: Guns Associated With Green Berets

How to Read Claims About Green Beret Weapons

Lists of “Green Beret guns” often combine current service weapons, older models, weapons used by other U.S. special operations units, and firearms seen in isolated photographs. A careful account separates these categories. It also avoids calling a weapon “standard issue” unless a credible source supports that description for the relevant unit and period.

For dependable background, U.S. Army and Department of Defense publications are useful for service-wide programs, such as the M17/M18 selection and the M4 family. Army Special Operations Command materials and reputable defense reporting can help establish unit context. Even then, public sources may describe a program without revealing each team’s equipment or current configuration.

The most accurate short answer is that Green Berets are commonly associated with M4-family carbines, while team members may also use machine guns, precision rifles, and pistols according to their roles. There is no single public weapons list that applies to every Green Beret, mission, and time period.

Sources and Further Reading

• U.S. Army — official news and equipment information.
• U.S. Special Operations Command — public information about special operations forces and command activities.
• U.S. Army announcement on the Modular Handgun System selection — background on the M17 and M18.
• National Guard — public military reporting and information relevant to Army units and equipment.