SIG Sauer P320 Lower Parts Kit – Complete FCU Parts Kit with Flat Trigger

Parts

SIG Sauer P320 Lower Parts Kit – Complete FCU Parts Kit with Flat Trigger

Complete or upgrade a compatible SIG P320 Fire Control Unit with this P320 lower parts kit (LPK) featuring updated drop-safe components and a flat-faced trigger. The kit includes the trigger bar, sear and housing, slide catch assembly, takedown components, springs, pins, safety lever and other essential FCU internals. Compatible with upgraded SIG P320 9mm, .40 S&W and .357 SIG configurations. FCU/chassis is not included.

Kit Includes

• Trigger stop pin
• Slide catch lever pin
• Safety lever pin
• Sear pivot pin
• Split coil pin
• Slide catch lever spring post
• Takedown safety lever
• Safety lever
• Slide catch
• Sear
• O-ring
• Takedown lever
• Slide catch assembly
• Slide catch lever spring
• Sear springs (2)
• Trigger bar spring
• Takedown lever spring
• Flat-faced trigger
• Trigger bar
• Sear housing
• Manual disconnector
• Updated drop-safe components

Compatibility

Compatible with SIG P320 configurations in:

• 9mm
• .40 S&W
• .357 SIG

FCU/chassis is not included.

FAQ

What parts are included in a SIG P320 FCU lower parts kit?

A P320 FCU parts kit contains the internal components used with a compatible P320 Fire Control Unit, including the trigger and trigger bar, sear components, slide catch assembly, takedown components, springs and pins. This upgraded kit also includes a flat-faced trigger and updated drop-safe components.