Magwell addition for SW1911 DK

[SpookyPistolero]

Howdy folks-

I've got a friend with a question about his son's 1911, and I need some help! He has the SW1911 DK model, and the only listing for frame type is its metal type. This gent is using it for IDPA and wants a magwell, however. A simple Brownell's search shows multiple options though, with one being for a Caspian frame and the other for STI frames.

Does anyone know which one would be appropriate for the S&W? Or what type of frame specifically the S&W has?

I think the point is just a solid, drop-in magwell.

Thanks guys!

 

[tlen]

I installed a S&W mag guide [Brownells 849-011-101] in a #108284 and it was a pure drop in with no fitting.
http://www.brownells.com/aspx/NS/store/ProductDetail.aspx?p=12752&title=MAG%20GUIDE