A gate gun creates a gate through hyperspace. The first time a gate gun is fired, it creates an “A” gate, which doesn’t do anything on its own. The second time it is fired, it creates a “B” gate. Each gate takes up one 5-foot square. Anything that enters an A gate is immediately teleported to the B gate, while maintain the same orientation and momentum. This includes light, so the gates can be used to establish line of sight and line of effect for Perception checks, spells, ranged attacks, and so on.

An A gate lasts 1 round per level of the gate gun, or until an associated B gate collapses. A B gate lasts 1 round per level of the gate gun. Thus if you have a 5^th level gate gun, when you establish an A gate it lasts 5 rounds on its own. If during this time you create a B gate, the A-B gate pair them lasts 5 rounds from that moment. Then both collapse. If you trigger a gate gun when there are no gates associated with it, or when there is a full A-B gate pair, you create an A gate, and any old gates collapse. If you fire a gate gun when it just has an A gate open, you automatically create a B gate paired to it.

A gate gun has a maximum range of 10 feet per level, both for how far away it can create a gate, and how far apart those gates can be. If you attempt to create a gate too far from the gate gun or too far from its paired gate, all gates collapse. If travel between pair gates draws a line through a force effect or at least 1 inch of star metal, the travel fails (though the gates remain active, and they can’t be used to establish line of effect or line of sight).

Gate guns aren’t illegal in most jurisdictions, but carrying one is often seen as evidence you are a thief, spy, or voyeur.

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