The E-Shotgun, also referred to as the E-Gun, Northshore Sports Club CA-09, or the PD-90 Advanced Coilgun, is a hand-held

automatic Automatic may refer to: Music Bands * Automatic (Australian band), Australian rock band * Automatic (American band), American rock band * The Automatic, a Welsh alternative rock band Albums * ''Automatic'' (Jack Bruce album), a 1983 el ...

9-stage

coilgun A coilgun is a type of mass driver consisting of one or more coils used as electromagnets in the configuration of a linear motor that accelerate a ferromagnetic or conducting projectile to high velocity. In almost all coilgun configurations, t ...

Xicheng District Xicheng () is a district of the city of Beijing. Its cover the western half of the old city (largely inside the 2nd Ring Road; the eastern half is Dongcheng District, Beijing, Dongcheng District), and has 1,106,214 inhabitants (2020 Census). It ...

Beijing Beijing, Chinese postal romanization, previously romanized as Peking, is the capital city of China. With more than 22 million residents, it is the world's List of national capitals by population, most populous national capital city as well as ...

China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...

(as well as "other technology teams"). In 2023, the CS/LW21 was commissioned by the Chinese government in order to "quell violent protests".

Operating mechanism

The E-Shotgun uses a 20-cell, 80 volt, unbalanced

lithium-ion polymer battery A lithium polymer battery, or more correctly, lithium-ion polymer battery (abbreviated as LiPo, LIP, Li-poly, lithium-poly, and others), is a rechargeable battery derived from lithium-ion and lithium-metal battery technology. The primary differe ...

to supply up to roughly 16 kW of power to 9 solenoid drive coils. Unlike many coilguns, the E-shotgun does not require a solenoid injector and instead pulls armatures directly from the magazine at the breach using the first coil. The CS/LW21 operates at medium voltage via a direct battery connection and does not use an inverter or capacitor charging system, which allows the system to charge rapidly to achieve a high rate of fire (up to 3000 rounds per minute). The 9 coils are shaped around a slot-profile barrel and are radially asymmetrical to accelerate large disk-shaped armatures at up to 45 m/s. The disk shaped armatures facilitate a large magazine capacity and high energy transfer due to their large mass, but tumble in flight due to their lack of stabilization. The disks are also highly dependent on mass production and cannot be manufactured by users from readily available stock materials. The shell of the weapon is manufactured from injection-molded polymer and the coils are mass produced with high uniformity between prototypes, further increasing reliability.

References

External links

Coil Accelerator official site
Firearms of the People's Republic of China Products introduced in 2022 {{Firearm-stub