I'm looking for 5 base plates for the Grip Plus 2 extenders that are used on the 5906 magazines so they can be used in a 6906 and fit flush. Same with a 4006 mag for use in a 4013. I bought these from a forum member along with a few 4006 mags and the Grip Plus 2 extenders are useless w/o the base plates. S&W only sells the extenders and base plates together they won't sell the base plates separately. Anyway, I've included some photos of what I'm looking for. Thanks