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What you're looking at above is the "Lulz Liberator", a fully-functional $25 handgun that was made with a Lulzbot 3D printer. It fired 9 shots successfully, with one plastic barrel surviving eight shots - another barrel was swapped in for the ninth. Continue reading for a video and more information.

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Being a master of weapons on the ground is one thing, having a machine gun / gatling gun turret-equipped SUV is another. This vehicle comes with just that, and at the push of a button, its roof opens up to reveal a weapon pod designed for a single person. Continue reading for the video.

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Photo credit: News.com.au

At $300000, the SGR-1 is basically an armed guard robot that can either be column-mounted or attached to a set of tank tracks. It's currently being used to patrol the border between North and South Korea. It comes equipped with a 5.56mm belt-fed machine gun and CCTV / thermal imaging cameras in two independently pivoting groups (secondary camera is used to seek out additional targets). Continue reading for a video.

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You read that right, Metal Storm actually created a 36-barreled stacked projectile machine gun, boasting the highest rate of fire in the world. This impressive prototype weapon demonstrated a firing rate of just over 1-million-rounds per minute for a 180-round burst, with a claimed maximum rate of fire of 1.62 million RPM. Continue reading for videos and more information.

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Here's a first: an attachment that turns your iPhone into a heads-up scope for real rifles. It's called the Inteliscope, and users just need to clip their iPhone 5, iPhone 4S or iPod touch onto the accessory, attach it to a rifle and you have a fully-functional heads-up scope that boasts custom crosshairs, video recording, a built-in compass and GPS, a timer and a few more handy functions. Continue reading to see a 3D-printed prototype in-action.

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Military uses of lasers include applications such as target designation and ranging, defensive countermeasures, communications and directed energy weapons. Directed energy weapons are being developed, such as Boeing's Airborne Laser which was constructed inside a Boeing 747. Designated the YAL-1, it is intended to kill short- and intermediate-range ballistic missiles in their boost phase. Continue reading to see more.

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This 11" Batman Twin-Blade Batarang Knife is currently being offered at just $8.40 shipped, originally priced at $22.95. Simply put, it's spring assisted, as opposed to an automatic switchblade knife, which means it's opened by using the index-open "flipper" or Thumb Knotch. Product page. Continue reading for a hands-on video review.

Notable features:
  • Overall Length: 11.00 " (with both blades open).

  • Blade Length: 3.50" for each Blade.

  • Handle Material: Black Anodized Aluminum w / Brushed Stainless Steel Frame.

  • Blade Material: Brushed 440 Stainless Steel.

  • Blade Style: "Batwing".

  • Spring Assisted / Index-open "Flippers" / Pocket Clip.
[via Amazon]

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Here's an interesting look at Lockheed Martin's ADAM, a high energy laser system that can be mounted on a trailer for easy transportation and to help defend high-value targets. What you're look at above is a prototype that uses a 10-kilowatt fiber laser to focus on to a moving target up to 2km away. The directed energy can disable / destroy the target before it gets anywhere near its planned destination. Continue reading for two video and more information.

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Gamer and geek Patrick Priebe decided to build a real-life Dead Space plasma cutter, and it's definitely no slouch. Featuring two 1500-milliwatt blue lasers and three 30-milliwatt green lasers for aiming. It's powered by four batteries - 3 14500 series lithium-ions and one 18650 - and weighs approximately 4.4 pounds. Continue reading for a video and more information.

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Now that you've seen pictures of Liberator, the world's first entirely 3D-printed gun, a new video has been released showing it in-action - firing a 0.380-caliber bullet to be exact. For those who missed the pictures, "the only non-plastic part of the design is a common nail, which acts as the firing pin." Continue reading to see more.

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