Electromagnetic gun

Electromagnetic gun is an umbrella term for projectile launchers that use electromagnetic fields to accelerate a metal projectile to high velocity without chemical propellants such as gunpowder. Unlike conventional firearms, these weapons generate propulsion through the Lorentz force or sequential electromagnetic induction, resulting in minimal muzzle flash, smoke, noise, and no ejected cartridge cases. They are sometimes referred to as "silent" or "stealth" weapons in military contexts. Electromagnetic rifles are portable or shoulder-fired designs. Railguns use two parallel conductive rails and a sliding armature, while coilguns (including Gauss guns) employ a series of electromagnetic coils that accelerate a ferromagnetic projectile. Both concepts date to the early 20th century, but saw little development until advances in high-energy-density batteries, power electronics, and materials science renewed interest. As of 2026, no electromagnetic rifle is in military service as an infantry weapon due to remaining challenges in power supply, efficiency, and durability. However, commercial civilian models exist, and several nations, particularly China, have demonstrated miniaturized prototypes suitable for law enforcement or special operations.

Terminology and classification

Electromagnetic accelerators are classified primarily by acceleration mechanism:

• Railgun: A projectile is accelerated between two parallel rails by a high-current pulse. The projectile or sabot completes the circuit.
• Coilgun: A series of solenoid coils is sequentially energized to create a traveling magnetic field that pulls or pushes a ferromagnetic projectile. No physical contact with rails is required.
• Gauss gun: a coilgun that uses permanent magnets

• Hybrid or helical designs: Combine elements for improved efficiency. Handheld versions are typically coilguns because they avoid rail erosion and require less instantaneous power.

History

The concept of electromagnetic projectile acceleration originated in the late 19th and early 20th centuries. Norwegian physicist Kristian Birkeland proposed coil-based accelerators around 1900 for scientific purposes. In 1918, French inventor Louis Octave Fauchon-Villeplee patented an early railgun design. During World War II and the Cold War, both the United States and Soviet Union experimented with electromagnetic launchers for artillery and anti-aircraft applications, but chemical propellants remained superior in portability and reliability.

The U.S. Army and Navy funded significant railgun research in the 1980s–1990s through programs like the Electromagnetic Gun Technology Development effort, comparing coilgun and railgun approaches. Public interest surged in the 2010s with videos of amateur and commercial coilguns. In 2017–2021, U.S.-based Arcflash Labs introduced the first commercial handheld coilguns, including the EMG-01 series and the GR-1 "Anvil". Military development accelerated in the 21st century. The U.S. Navy invested heavily in ship-mounted railguns (e.g., the BAE Systems prototype), but canceled the program in 2021 due to power and barrel-life issues. China emerged as a leader in both naval railguns and miniaturized handheld systems.

The first commercial handheld electromagnetic weapons appeared in the United States. Arcflash Labs released the EMG-01B (a compact coilgun pistol) in 2018 and the GR-1 "Anvil" (an 8-stage bullpup coilgun) in 2021. In 2020 Chinese developers demonstrated rifle-size railguns and larger coilguns.

Operating principle

Railgun

A railgun accelerates projectiles using the Lorentz force \(\mathbf{F} = I \mathbf{L} \times \mathbf{B}\), where \(I\) is current, \(\mathbf{L}\) is the length of the armature, and \(\mathbf{B}\) is the magnetic field generated by the current in the rails. High-voltage capacitor banks or pulsed power supplies deliver megampere currents, propelling the projectile at velocities potentially exceeding 2–3 km/s in large systems. Rail erosion from arcing and friction remain challenges.

Coilgun

Coilguns operate on electromagnetic induction and sequential switching. A ferromagnetic projectile is drawn into energized coils; each coil is timed to turn on and off as the projectile passes, avoiding drag. Modern designs use insulated-gate bipolar transistors (IGBTs) or silicon-controlled rectifiers for precise switching. Efficiency depends on timing accuracy and coil geometry. Unlike railguns, coilguns require no sliding electrical contacts, reducing wear. Power sources for handheld versions have evolved from capacitor banks to high-density lithium-ion batteries combined with inverters (e.g., Arcflash Labs' patented clamped quasi-resonant (CQR) inverter).

Advantages and disadvantages

Advantages (v conventional firearms)

• Near-silent operation with minimal recoil and no muzzle blast
• No propellant required; ammunition is inert metal projectiles (lower logistical cost and safer storage - no combustibles)
• Adjustable velocity and kinetic energy allowing non-lethal or lethal outcomes
• No casings, reducing forensic traceability and enabling stealth
• Available higher muzzle velocity in large systems (hypersonic possible).

Disadvantages

• High power consumption; handheld models require heavy batteries or frequent recharging
• Low muzzle velocity (typically <100 m/s for commercial units), limiting lethality and range
• Complex electronics susceptible to EMP and heat
• High manufacturing cost and technical complexity
• Projectile mass and spin stabilization complicate accuracy
• Lower energy efficiency for portable applications

Commercial products

Arcflash Labs' GR-1 weighs approximately 20 lb (9.1 kg), measures 38 inches long, and achieves up to 75 m/s muzzle velocity, delivering roughly 75 ft-lbs of muzzle energy. It uses a 25.2 V lithium-polymer battery and eight electrolytic capacitors. It can deliver 100 rounds per minute in semi-automatic mode.

The Chinese Coil Accelerator series offer full-auto capability at ~1200 RPM and ~40 joules energy. These devices are marketed for recreational or experimental use and are not classified as firearms under U.S. law because they lack combustion. Muzzle velocities are far below conventional rifles (typically 300–1200 m/s), limiting practical ballistic performance. Experts have described them as "serious weapons" for close-range applications, but not replacements for traditional firearms.

Military

Electromagnetic weapons are under development for naval, artillery, and infantry roles. The U.S. Navy's railgun program aimed for shipboard use but faced power and barrel durability issues. Smaller-scale research continues. Other nations, including Egypt (2025), have shown interest in directed-energy and electromagnetic launchers.

China

China has focused on miniaturizing electromagnetic launcher technology for handheld use. In April 2026, state media reported a handheld Gauss gun developed by state-owned China South Industries Group Corporation. The weapon features a compact, boxy design with a 30 cm (12 inch) barrel, lightweight construction suitable for one-handed operation, and a central grip with a rear-mounted detachable magazine. An electronic display reports battery life, ammunition count, and firing mode. A laser pointer aids accuracy. Performance claims include:

• Rate of fire between 1,000 and 2,000 projectiles per minute (up to 3,000 in optimized modes using AI-timed sequential coil activation)
• Adjustable projectile velocity allowing non-lethal incapacitation or maximum penetration
• Sufficient energy to penetrate wooden boards at dozens of meters
• Stealth characteristics: no muzzle flash, smoke, loud report, or shell casings

The design exploits battery power and multi-stage electromagnetic coils. Chinese military expert Song Zhongping described the weapon as demonstrating successful miniaturization, lightweight design, and individual soldier deployment. It is targeted for stealth operations, law enforcement, crowd control, and military engagements. Lower ammunition costs and exploitation of high-energy-density batteries are highlighted as advantages. The 2026 handheld model marks a shift toward infantry support. Independent verification of exact performance metrics remains limited. China has tested ship-mounted railguns capable of long-range hypersonic strikes.

Challenges

Primary adoption barriers include:

• Power density: Batteries limit sustained fire and muzzle energy in portable configurations.
• Thermal management and component durability: High currents cause heating and wear.
• Switching precision: Millisecond-level timing is critical to achieve reasonable performance.
• Projectile stabilization: Achieving spin or aerodynamic stability without rifling is difficult.

Future improvements may come from solid-state batteries, superconducting materials, or AI-optimized firing sequences. Integration with directed-energy systems or hybrid chemical-electromagnetic launchers is under development. Electromagnetic rifles could supplement or replace conventional small arms in specialized roles (urban warfare, special forces, non-lethal policing) if power sources advance. potentially accelerating civilian spin-offs.

Legal/regulatory issues

In the United States, handheld coilguns are not considered to be firearms under federal law because they lack explosive propellant. They are often sold as air guns or experimental devices, though some states restrict projectile launchers. Export controls apply to military-grade systems. Internationally, the emergence of electromagnetic weapons raises questions under arms-control treaties regarding "less-lethal" or novel munitions. Their stealth characteristics could complicate attribution in conflicts or law-enforcement incidents.

See also

• Railgun
• Coilgun
• Directed-energy weapon
• Gauss gun

External links

• Malayil, Jijo. "US quietly resumes railgun tests, reviving hypersonic weapon ambitions". Interesting Engineering. Retrieved 2026-04-09.

This article "Electromagnetic gun" is from Wikipedia. The list of its authors can be seen in its historical and/or the page Edithistory:Electromagnetic gun. Articles copied from Draft Namespace on Wikipedia could be seen on the Draft Namespace of Wikipedia and not main one.

---