KUALA LUMPUR - The lethal ballpoint pen that purportedly killed a van driver in Sarawak during the weekend can be easily bought online from suppliers in the United States.
However, a check by The Star revealed that none of these companies shipped the "ballpen guns" to Malaysia.
There are also videos on popular social media sites that provide do-it-yourself guides on making the miniature weapons at home.
One video that showed a step-by-step guide has received almost 900,000 views since it was posted in February.
The administrator of the video, however, warned that in many cases, the pen gun is dangerous and poses risks of personal or property damage, injury and, in some cases, death.
The administrator adds: "There are very possibly other risks of which I am not fully aware of.
"Use of video content for personal projects is at your own risk."
Other videos show variations of the weapon, including those made from pencils and mechanical pencils. There are videos on making darts and pellets for the weapon.
Inspector-General of Police Tan Sri Khalid Abu Bakar said the ballpen gun is not a new phenomenon.
"It has been around for over 20 years and we are aware of it. It might have been smuggled into the country or made at home.
"We would have found it if the weapon had been brought in through the usual entry points," he told a press conference at Bukit Aman yesterday.
At about 8.30am on Sunday, a van driver suddenly collapsed in front of a market in Bintulu and stunned witnesses claimed they heard a small exploding sound before he keeled over and died.
The police recovered in the dead man's hand a small slim item that resembled an electronic gadget, which was later identified as a ballpen gun. The police also found a small plastic box containing tiny pellets.
The man had burn wounds on his chest, which the police said could have resulted from an accidental triggering of the miniature firearm.