Sig Sauer P320/M17/M18 Grip Module Features The Sig Sauer P320/M17/M18 Grip Module is molded from standard polymer and sized to a medium grip circumference giving shooters with average hand size a secure natural point of aim. Because the P320 platform is modular this module accepts the compatible 9mm .40 S&W and .357 Sig fire control units and lets the same grip serve across the Compact M17 and M18 configurations. The built in manual safety adds a mechanical layer of control for shooters who prefer a thumb safety on their duty or carry pistol. It is magazine disconnect compatible so the module integrates cleanly with Sig s factory safety features rather than working around them. Swapping to this grip module is a direct factory-level upgrade that requires no gunsmithing since the P320 system is designed around a serialized fire control unit that drops into any compatible grip. It accommodates the 4.7 inch 3.9 inch and 3.6 inch slide configurations giving an owner the flexibility to reconfigure a single trigger group across barrel lengths. The black polymer finish is durable and low maintenance holding up to holster wear and routine carry. This grip module is available for sale at GrabAGun for P320 M17 and M18 owners looking to customize fit or add a manual safety to their pistol. Sig Sauer P320/M17/M18 Grip Module Specifications Manufacturer: Sig Sauer Model: P320/M17/M18 Grip Module Caliber: 9mm / .40 SW / .357 Sig Compatible Hosts: Sig Sauer P320 Compact P320 M17 P320 M18 Color: Black Material: Polymer Size: Compact Safety: Manual Magazine Disconnect Compatible: Yes Available At: GrabAGun