I'm not familiar with "aero approved wood adhesive" Any suggestions? Most of what I use here is Marine Tex Epoxy.

http://www.marinetex.com/marinetexepoxyputty.html

According to page 46 of the NRA rules it states.

http://thecmp.org/wp-content/uploads/CMPGamesRules.pdf

Must be in as-issued condition. No fiberglass stocks, special bedding
(glass bedding, etc.), match triggers or other special accurizing are
permitted.