The full review is available here
English review at BudgetLightForum
German review on my website
Summary
How does someone come up with such an idea? The Cyansky Vanguard is a great toy for flashlight enthusiasts and gun lovers – definitely a flashlight with a high fun factor. What makes it so special? Its unique design, which is slightly reminiscent of a Glock and that it is loaded with a “9 × 19 mm” battery after the slide has been pulled back. Crazy!
As a flashlight, it is a pretty decent thrower. The beam shape is perfectly fine, but it has a strong green tint. The (matching) green laser is a nice extra. After all, you need something to shoot with, right? When it comes to the buttons, design comes before ease of use.
Got curious? You can preorder the Cyansky Vanguard now here on Kickstarter.
This is nuts, and is it an actual special battery too, or just a 1/2AAA or 10180?
I remember Cyansky making some silly lights before, and I guess they are still at it.
Added: I see on the BLF review that the battery is a 16280. No idea if that's a standard sized, but it's definitely uncommon. They could have just used a 16340. Silly.
Added 2: I wonder if it could be a 15270 aka RCR2? I guess 16280 would be close to 1/2A but again it seems weird.