The Sig Sauer P320 X5 Legion is a Carbided favorite. The tungsten infused polymer creates a weighty grip module that has all the benefits of a heavy metal grip module without the downsides, which includes mitigating the sharp impulse from firing that can often reverberate through an all metal frame, as well as being uncomfortable during extreme temperatures, especially in the cold and exposed to the elements in an OWB holster. Our Silicon Carbide services for the TXG and all X Series grip modules are split into 3 different packages, tailored to the shooter based on the level of coverage. The basic package has an exposed undercut and exposed beavertail, the Intermediate package has an exposed undercut but a covered beavertail and the Pro package has both a covered undercut and beavertail. The less coverage means that there is more “forgiveness” at the holster on initial interface with the firearm. The Pro package for example will basically lock in whatever interface you achieve at the holster, making it difficult to adjust during presentation, but you will be rewarded if your master grip on the gun is established, allowing the shooter to achieve as close to maximum performance as possible.