A guy at work has a Marlin Bolt action 7 round magazine fed .22 he says he thinks is about 20 years old. He doesn't know the model number. He says it's in mint condition, he just doesn't have a use for it. I'm interested in getting it for my daughters to learn to shoot if it's in good condition. He only wants 50 bucks so it seems like a no brainer but I thought I'd ask you guys first as I'm fairly new to the firearms world. What should I look for when inspecting the rifle? Is this a good rifle to teach my daughters? Or should I get something brand new? He is going to let me look at it today and I have to decide then because he has others that are interested as well but he promised me first dibs.