In the heart of Sunnyvale, California (USA), you’ll find the man who’s made every child’s dream come true with an incredible super-sized toy gun.  

Mark Rober has blasted his way into the new Guinness World Records 2017 Blockbusters! book for his massively awesome creation: the world’s Largest Nerf gun.

The 36-year-old mechanical engineer and YouTuber spent several weeks developing the 1.82 m (6 ft.) long gun, which shoots foam bullets at 40 mph.

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His inspiration for building the Nerf gun? His work colleagues. Mark explains: “Everyone in the office has Nerf guns and they shoot each other with them. I started thinking about how to one up my fellow engineers. I had a few different ideas but eventually decided to go big or go home.”


In fact, his biggest challenge in constructing the Nerf gun was the logistics behind harnessing the power of a paintball pressure tank to shoot a dart built from a pool noodle and a toilet plunger.


Besides constructing enormous toys, Mark is also an avid YouTuber.


A video of his record-breaking accomplishment posted on his channel has received nearly 14,315,534 views to date.  


For Mark, who collected Guinness World Records books as a youngster, his new title is a dream come true.  

“It’s really cool to make it into the Guinness World Records 2017 Blockbusters! book. I never thought I would get one but it’s always been a secret bucket list kind of thing. I now have the official certificate hanging in my office.”


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Mark has placed a target on other Guinness World Records titles with plans to make more attempts, but is keeping them a secret for now.


When he isn’t playing with his Nerf gun with his family or colleagues, or working on mechanical engineering projects, Mark enjoys making engaging and educational YouTube videos on his channel (Mark Rober at onemeeeliondollars) and spending time with his family.

For more information on the records featured in Blockbusters! 2017, as well as access to exclusive content, games, quizzes and tutorials on the record-challenges to try at home, visit our KIDS website.  

Don’t wait! If you’re in the USA and want to get started on the terrific content in Blockbusters! 2017, click here to purchase a copy. The book will also be released in the UK and the Australia later this year.