Is there such thing as a zoomable lowlight lens?

I'm looking for a zoom able lens that has low light capability for my nikon d5100 under $300. Its the AF-S system and I can't find many lenses.

Not for that price. Anything "fast" at constant f 2.8 costs a lot of money (to make).

I use the Nikkor 24-70 mm f/2.8 and Nikkor 70-200 mm f/2.8 in low light, but for under $300 you seem to have unrealistic expectations.

Actually your camera is quite capable of shooting at ISO's of 3200 with very little noise.

Sample:

This was shot with an older Nikon D300 and your D5100 performs much better in low light, so I would expect your shots under the same conditions would be even better

http://www.dxomark.com/...nd2)/Nikon