Grabbed a Boyd's thumbhole with factory DBM inlet from a fellow member, and it turns out to be for a bottom bolt release (my fault for not asking).

I know I can do a little work on the stock to clear the sear and bolt release lever, but will the old style trigger guard and factory DBM fit in the same inlet? I don't have the gun I'm my hands yet, and thought I'd ask before I start relieving wood to mirror a factory plastic.

(I've searched the site about 15 times, but can't seem to find an answer)