I am wanting to purchase two guns For my son and my nephew Ages 10 and 8 for Christmas. They have no experience with guns at all. I would like to teach them how to Properly handle a gun And allow them to have backyard play with targets. I know nothing about Airsoft myself, so please be specific in your recommendations. I do not want to spend a lot on these guns. Something less than $40 each Would be within my budget. I also need some good recommendations for places to purchase them.