9 of the Fastest-Firing Machine Guns Ever Made

What defines the most extraordinary machine guns isn’t just their firepower—it’s the sheer ingenuity behind their design. These are not mere tools of war; they’re marvels of engineering that blur the line between precision and raw, destructive capability.

From naval cannons to squad favorites, some of these weapons can unleash fury faster than your brain can register what’s happening. Prepare to challenge everything you thought you knew about the limits of ballistic innovation with this lineup of the world’s fastest, most lethal firearms.

1. AK-630M: The Naval Nightmare

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Image Credit: US gov, Public domain, via Wikimedia Commons

Russian engineering meets maritime defense in the AK-630M, a six-barreled rotary cannon that can spit out 5,000 rounds per minute. Primarily used by the Russian Navy, this close-in weapon system is designed to obliterate airborne threats like missiles and small ships.

Mounted on vessels from fast attack boats to massive battlecruisers, the AK-630M provides a last-line defense that can turn incoming threats into Swiss cheese in seconds.

2. Thompson M1919: Prohibition Era Powerhouse

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Image Credit: National Park Service, Public domain, via Wikimedia Commons

With a blistering 1,500 rounds per minute, the Thompson M1919 became legendary during World War II. (ref) Originally developed by Brigadier General John T. Thompson, this weapon gained notoriety not just on battlefields, but also during the infamous Prohibition era.

Its high rate of fire made it a favorite among military units and, infamously, among certain criminal elements of the 1920s.

3. MG3: German Engineering at Its Finest

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Germany’s MG3 continues the legacy of the infamous MG42 from World War II, firing an impressive 1,200 rounds per minute. Derived from one of the most feared weapons of the Axis powers, the MG3 represents a refined version of its predecessor.

Lighter than the original and with a slightly reduced rate of fire, the MG3 remains in service with numerous militaries worldwide.

4. Vector .45 ACP: Special Forces’ Secret Weapon

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Image Credit: Michael E. Cumpston, CC BY-SA 4.0, via Wikimedia Commons

Boasting 1,200 rounds per minute, the KRISS Vector isn’t just about speed. Its innovative “Super V” recoil mitigation system makes it a favorite among special forces and law enforcement.

Designed for urban combat scenarios, this weapon proves that precision can accompany rapid fire.

5. GAU-8 Avenger: The A-10 Warthog’s Heartbeat

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Firing 4,200 rounds per minute, the GAU-8 Avenger is the massive cannon that makes the A-10 Warthog a legendary ground attack aircraft. This behemoth of a weapon can turn armored vehicles into scrap metal in seconds.

6. M249: Squad Automatic Weapon Supreme

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Image Credit: US Marines photo, Public domain, via Wikimedia Commons

At 800 rounds per minute, the M249 Squad Automatic Weapon (SAW) has been a staple in U.S. military operations since 1984. From Panama to Iraq and Afghanistan, this lightweight machine gun has delivered sustained automatic fire in countless conflicts.

7. Heckler & Koch G11: The Cold War Oddball

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Image Credit: Jan Wellen, CC BY-SA 3.0, via Wikimedia Commons

With a mind-boggling 2,100 rounds per minute, the G11 looked more like a science fiction prop than a real weapon. Firing unique caseless ammunition, this German weapon was ultimately a victim of post-Cold War defense cuts.

8. RPK-74: Soviet Suppression Specialist

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The Soviet-designed RPK-74 delivers a solid 700 rounds per minute, making it a reliable light machine gun that saw action in conflicts like the Soviet-Afghan War.

9. ACR 6.8: Modern Modular Marvel

9 of the Fastest-Firing Machine Guns Ever Made » Bushmaster ACR wc
Image Credit: Deltaforce5000, CC BY-SA 4.0, via Wikimedia Commons

Rounding out our list is the ACR 6.8, capable of 880 rounds per minute. Developed to potentially replace the M16, this weapon showcases the adaptability of modern military firearms.

Weapons technology continues to evolve, pushing the boundaries of what’s possible. These machine guns represent not just tools of war, but remarkable achievements in engineering and design.

Martha A. Lavallie
Martha A. Lavallie
Author & Editor | + posts

Martha is a journalist with close to a decade of experience in uncovering and reporting on the most compelling stories of our time. Passionate about staying ahead of the curve, she specializes in shedding light on trending topics and captivating global narratives. Her insightful articles have garnered acclaim, making her a trusted voice in today's dynamic media landscape.