4 kg8.82 lb
A Portal Gun weighs about 4 kg (8.8 lb) by our estimate. Valve has never given the Aperture Science Handheld Portal Device a weight. We base the figure on real replicas: NECA’s official life-size version is 76 cm (30 in) long, and the replicas people have weighed come in at roughly 2.3 to 4.5 kg.
| The in-game device (our estimate)No official weight exists | 4 kg8.82 lb |
|---|---|
| Harrison Krix’s handmade replica (2009)Described as 5 to 10 lb (2.3 to 4.5 kg) | 3.4 kg7.5 lb |
| NECA life-size replica (2012)One owner’s scale reading, possibly with the box | 3 kg6.61 lb |
Neither Portal game gives the device a weight, and neither do Valve’s other materials. The Portal Wiki and the Combine OverWiki describe how it fires two linked portals and picks up objects, and the Combine OverWiki says it is powered by a built-in miniature black hole, but no mass, material or size is listed anywhere. So 4 kg is our estimate.
It starts from the size. NECA, Valve’s licensed replica maker, made a 1:1 version that is 30 in (76 cm) long with the claws retracted and 8.5 in (22 cm) wide at its thickest point. Chell holds a device that big with both hands: one on the grip and trigger, the other under the barrel.
Then the weight. Replicas that size, built mostly from plastic and foam, have been weighed at about 3 kg for NECA’s and 5 to 10 lb (2.3 to 4.5 kg) for a handmade one. A device that actually opens portals would carry real hardware inside its casing, so we put it at the top of that span, around 4 kg (8.8 lb).
NECA released its Aperture Science Handheld Portal Device in 2012, limited to 5,000 pieces and sold through ThinkGeek for $140. It has blue and orange LEDs, a sound for each portal color, a three-way switch for blue, orange or off, a working trigger and posable claws. It runs on three C batteries, which are not included, and it ships without a stand because it rests on any flat surface.
NECA never published a weight, and reviewers mostly found it lighter than they expected. Chaos Hour wrote that it felt a little light until the batteries went in, and the Short Wave Radio review compared the plastic to a Nerf gun’s. On a collectors’ forum in May 2012, one owner put theirs on a scale and got 3 kg (6.6 lb). The post was about arranging a collection, so that figure may include the box.
Before NECA, the best-known replica was the one prop maker Harrison Krix built in 2009 for his girlfriend’s cosplay. He made it from florist foam, Wonderflex plastic and PVC pipe, lit its LEDs with a 9V battery, and spent about 150 hours and $350 in parts on it. Engadget reported that it weighs “between five or ten pounds”, which is 2.3 to 4.5 kg.
Krix later built a second version that was auctioned at the Child’s Play charity dinner in Seattle, with a base signed by Valve staff. At the other end of the scale, ThinkGeek sold a miniature Portal Gun in October 2012: 12 in (30 cm) long, about 40% of full size, weighing about one pound (0.45 kg) and costing $60.
About 8.8 lb (4 kg) by our estimate. Real replicas weigh less: NECA’s life-size one was weighed at about 6.6 lb (3 kg), and Harrison Krix’s handmade one at 5 to 10 lb.
No. Valve never gave the Aperture Science Handheld Portal Device a weight in Portal, Portal 2 or any official material.
NECA’s licensed 1:1 replica is 30 in (76 cm) long with the claws retracted and 8.5 in (22 cm) wide at its thickest point.
It sold for $140 through ThinkGeek in 2012, in a run limited to 5,000 pieces. In Japan it was listed at ¥16,000.
In the games it fires two linked portals, and firing a new one of the same color closes the old one. It can also pick up and carry objects, much like the Gravity Gun from Half-Life 2.
Last checked October 2, 2026.
