I used a med stain on my Sig box. Then coated it with some polyurethane. The stain really looks good. But stain won't work if there is ANY CA glue on it, but it was only in one spot I didn't see till it was too late. The burned edges from the laser cutting stained really well also. If I sanded any of the burned edges away, I used a wood carving iron to burn it back. Worked great.
Be sure to show some pics when ya done.
On a side note. I built the Sig Mini fieldbox, the one with the seperate battery box. One panel that should of had 2 keyholes cut in it only had one. Contacted Sig about a new panel, they had it to me within the week. No costs to me of course.
Now that is great customer service!