SIG Sauer 8900031 P320 Grip 9mm Manual Safety Pistol

The SIG Sauer 8900031 P320 Grip Module with manual safety in 9mm is the foundation of one of modern law enforcement's most trusted modular platforms. This grip module serves shooters and agencies requiring a manual safety lever for administrative control and holster retention—a critical feature in duty carry, training environments, and jurisdictions with specific safety mandates. Whether you're a firearms instructor, duty officer, or precision shooter, this grip module delivers the ergonomic and mechanical foundation the P320 platform is known for.

The P320 Grip Module is engineered as a serialized fire control unit housing, meaning the frame itself is the regulated component—not the slide or barrel. This modular design allows shooters to swap caliber-specific slide and barrel assemblies (9mm, .40 S&W, .357 SIG) onto a single grip frame, creating a multi-caliber platform without purchasing multiple firearms. The manual safety model adds a thumb-operated lever that de-cocks and safely secures the striker, providing an additional layer of control favored by operators requiring positive mechanical engagement during transitions, reholstering, or administrative handling.

Law enforcement agencies, military units, and civilian shooters building a P320 platform benefit most from this grip module. The manual safety appeals to duty personnel accustomed to traditional single-action ergonomics or those operating in regulations stipulating thumb-operated safety devices. Installation of a compatible 9mm slide and barrel assembly onto this grip frame creates a complete, functional P320 pistol—making it the essential starting point for platform customization or duty-ready builds. Verify slide and barrel compatibility with your intended configuration before assembly.