CavSoldier,
First off, thank you for your service to our country and the cause of freedom in the world.
Second, Neat rifle! There isn't a sane 11-year old who wouldn't love it!
One thing - you want to have a tiny gap at the back end of the tang between the tang and the wood, maybe .010 to ,020". When the gun is fired it is not uncommon for the wood supporting the breech to compress slightly from recoil. the relief at the back of the tang will allow for some compression without causing the stock to split or chip out at the tang.
Stay safe and welcome back home.
Best Regards,
JMC
John Cholin