If you mean the full xbow, then no. The individual parts of the xbow can be attatched without the arm to the side, though (bigger parts on legs, pipe thingys on arms)
you could detach her arms and lay them on the ground in front of her. wouldnt be out to the side then.
I was actually thinking about drilling out the outsides of the holes so you could peg the guns on the outside of the arms similar to movie Ironhide. I'm worried it might make the arm weaker or something so I'd prolly try to fill in the other side. But until I do that, I keep her gun split in two parts and have her holding each one under her arm like a cannon or something. For a small robot, she got some REAL big guns.