Spin Chambers are electric weapons that work by spinning up projectiles at very high speeds inside an internal vacuum chamber. The advantage of Spin Chambers is their ability to reach high velocities like LARs in a more compact frame. Most can reach much higher velocities than LARs, which makes them ideal for armor piercing and heavy-duty targets.

Their disadvantage is that they have a lower rate of fire. As they have to wind up to reach higher velocities, they typically carry less ammo, and their mechanical nature means that they are prone to failure more often.

But they remain a preferred choice for snipers, shotguns, and many handguns. The functionality can also be seen in tanks and starship cannons.