Ahh Google. Doing a search for 'suction cap dart' somehow turned up this image of what clearly (hehe) looks like a Nerf Jolt clone, only for a rip off I actually quite like the way it looks. They've also changed the priming arm t-bar style of the Jolt to a Nitefinder style ring so it's not a COMPLETE copy.
Apparently the kit comes with the blaster and an overkill of 10 darts. Which is probably why they're asking short of 10 bucks for one. Probably won't buy but do like to look:)
Plastic Pump Action Suction Cup Gun via Tiny Deal