I have a NCstar Universal Bipod it fits a picatinny rail or with the inlcuded adapter, it fits any other rifle as well. The model number is ABUQ. Its cost is only around 30 dollars. It has independant extendable legs, and so far mines held up perfectly to uneven ground prone shoots. I hope this helps you out. Here is a youtube video so you can see it for yourself. Because as if your like me, then sometime a still shot photo doesnt answer all of my questions about a product im interested in. This guys kinda annoying, but if you fast forward to around 1:45 or so then he actualy gets to the review of the bipod. Instead of just talking and talking lol.
I bought a Yankee Hill machine bipod adapter and use my Harris Bipod when I'm not shooting my Tikka T3. If I didn't have a Harris lying around already I would of gone with the NcStar DownRange&Upwind mentioned. I have a few NcStar products and for the money they ain't bad.