B&T polymer lower USW-320 for SIG P320

The perfect upgrade for the SIG Sauer P320!
The revolutionary USW concept from B&T is now also available for the P320. The practical polymer conversion kit transforms a normal P320 (full-size or compact) in less than two minutes into a USW-320 with integrated stock. Just transfer the trigger group, the slide and the magazine release onto the USW-320 frame. The USW-320 lower equals the full-size P320 lower, so 17 round magazines (and bigger) can be used.
Due to the integrated folding stock, accuracy and range is improved significantly.