Armory Craft offers everything that you need to turn your Sig Sauer P320 FCU into an X5 TXG Legion pistol.  We offer excellent pricing on the X5 TXG tungsten-infused grip module and it comes with the magazine release and magwell already installed.  The item is brand new and unused.

Be sure to check out our wide selection of premium Sig Sauer P320 dual-adjustable triggers, magwells, base pads, extended magazine release buttons and sport takedown levers, as well as premium accessories for the Sig Sauer P365, P220, P210, P226, P228, P229 and M11A1 handguns. 

Sig Sauer P320 Tungsten-Infused X-Series / X5 Legion TXG Grip Module