Hello all, quick question about my 336c. I'm still learning about the gun, but from what I understand I have a Texan edition, seeing that it has a straight stock and lever. I'd like install a sturdy sling, but not too sure where to look. There aren't any swivels on it as of right now. Just a regular band, and a black and white circle on the butt where a stud would go. Any feedback would be greatly appreciated.