Friend of mine has been wanting to buy a new rifle ever since I got my AR. He started showing some interest in getting a Mosin since they're so cheap, and I told him I'd get some info on what to look for, but he went ahead and bought the first one he found locally. Fucking impulse buyer, just like me. It's a pre war 1940 M91/30, and looks in great shape. Anything he should know about this particular rifle, other than what wattage bulb to use in it?