I'm going to second Stealth, SR-15 is a great buy. Acquired one from mach1 recently and just finished upgrading the internals. If you have a thing for externals then VFC it is.
As THe_Silencer pointed out the ambi is a little loose. (Just to note this is not true for all ambi, the VFC scar solved the problem by using small grub screws to keep the gear tight against the gearbox shell). But if your not left handed you wont really notice this.
Also to answer your question earlier It comes wired for a regular tamiya batt. If you want to use lipo you will have to re-solder the connectors.
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