I have finished my Sig LT 40. Was my first kit of that size, a lot of fun. The only problem I encountered was a warped trailing edge. I didn't notice it until I had built that side. I tried to straighten it with water and ammonia which worked for a while but returned to its original shape. When it went to cover it. Tell him to check the wood before he puts it together.

I have a OS .46fx on mine.