SIG GRIP MOD P320X5 9MM GRY

Description

The SIG Sauer TXG P320 X-Series Grip Module is built for shooters who want to run their P320 Fire Control Unit in a heavier, more stable platform without adding metal components. The defining material here is tungsten-infused polymer, which substantially increases mass compared to a standard P320 grip module. That added weight does real work: it lowers the pistol’s center of gravity and dampens muzzle rise, so the gun settles back on target more quickly between shots — a meaningful advantage during sustained range sessions or high-volume training.

Tungsten-infused polymer occupies an interesting middle ground. It carries the heft normally associated with a steel frame but retains the corrosion resistance and slight flex of polymer construction. That flexibility also means the frame won’t crack under the kind of thermal cycling that can stress more brittle materials over time. The grip is sized for the full-size P320 format in a medium grip profile, which fits most adult hands without additional grip sleeve fitment. Installation is straightforward — the Fire Control Unit drops in the same way it would with any other P320 grip module, so no specialized tooling is required. The grey finish is SIG’s own designation, not a generic color coat, and it complements the X-Series component family. At roughly 16.6 ounces, this module weighs considerably more than a standard polymer grip, which is the entire point: if you’re looking to smooth out your splits on the range without changing your trigger or ammunition, shifting mass into the frame is one of the most direct ways to get there.