VSR10 is made by the japan manufactured of tokyo marui. The origine of this bolt it's to compete with maruzen who are leadership in the sniping airsoft world. Simple construction for cheapest cost, VSR10 became a reference.
In first, if you are a newbie. I adverst you to sniping in airsoft isn't the same than video game and movie. It's very difficult to begins with a bolt.
But, if you're made your choice. VSR10 is for you.
The first version made by marui is the VSR10 pro snip (with black stock) and VSR10 real shock (with wood like stock and recoil system).
Last few year, VSR10 G-spec was product. This version have a shortest barrels and have got a silencier and mount. There are others difference detailled in the G-spec reviews.
Finally, in 2010, Marui redesigns VSR10 with Pro Hunter version. This version has got a silver barrels, receveur and scope (4x40) and is equipe with the recoil system. Available with black or wood like stock.
I wouldn't discute about Chinesse manufactured copy of VSR10 like Jing gong bar10. But if your copie is compatible with VSR10, all is viable.