Just discovered Browning is making a small version of their BL-22, csalled the Micro Midas.
LOP 12", only weighs 4 lb, 8 oz, with a over all length of 31 1/2".
Sounds about kid size to me

[Linked Image]

http://www.browning.com/products/catalog/firearms/detail.asp?fid=005B&cid=024&tid=115