Home > Sig P320 > Caliber X-Change Kits
Convert your P320 to another caliber or size with these caliber X-Change Kits.
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GGP320CBLK1 GGP Slide for Sig Sauer P320 Compact V1 Black

The adoption of the P320® platform by the U.S. Military, as well as many Law Enforcement agencies, professional lead farmers, competition shooters, and firearm instructors led to the development of a new line of GGP aftermarket slides. After all, the P320’s ability to be custom tailored to the individual user’s preferences in grip length, grip size, as well as slide length and sight radius are all highly desirable features. Why stop there, when you can have even more customization options when upgrading to a drop-in GGP320 slide.

These GGP320 slides offers enhanced aesthetic features, increased grip serrations and an improved coating without compromising function. We also took our hybrid MRDS optic cut and added a third option, the SIG ROMEO1. Now you have to option to use a ROMEO1 as well as a Trijicon RMR or Leupold DeltaPoint Pro right out of the box without using bulky adapter plates that only raise the optic further above the bore axis. Available in Grey or Black DLC finish for corrosive and abrasion resistance, the GGP320 will also be available in Cerakote to better match the Coyote Tan Grip Modules used in the M17 and M18 issued pistols. The GGP320 is a drop-in install that comes with all the enhancements that professional handgun shooters have come to expect from Grey Ghost Precision.

MSRP $418.95
Our Price: $384.75
Savings: $34.20
GGP320CFDE1 GGP Slide for Sig Sauer P320 Compact V1 FDE

The adoption of the P320® platform by the U.S. Military, as well as many Law Enforcement agencies, professional lead farmers, competition shooters, and firearm instructors led to the development of a new line of GGP aftermarket slides. After all, the P320’s ability to be custom tailored to the individual user’s preferences in grip length, grip size, as well as slide length and sight radius are all highly desirable features. Why stop there, when you can have even more customization options when upgrading to a drop-in GGP320 slide.

These GGP320 slides offers enhanced aesthetic features, increased grip serrations and an improved coating without compromising function. We also took our hybrid MRDS optic cut and added a third option, the SIG ROMEO1. Now you have to option to use a ROMEO1 as well as a Trijicon RMR or Leupold DeltaPoint Pro right out of the box without using bulky adapter plates that only raise the optic further above the bore axis. Available in Grey or Black DLC finish for corrosive and abrasion resistance, the GGP320 will also be available in Cerakote to better match the Coyote Tan Grip Modules used in the M17 and M18 issued pistols. The GGP320 is a drop-in install that comes with all the enhancements that professional handgun shooters have come to expect from Grey Ghost Precision.

MSRP $418.95
Our Price: $384.75
Savings: $34.20
GGP320CGRY1 GGP Slide for Sig Sauer P320 Compact V1 Gray

The adoption of the P320® platform by the U.S. Military, as well as many Law Enforcement agencies, professional lead farmers, competition shooters, and firearm instructors led to the development of a new line of GGP aftermarket slides. After all, the P320’s ability to be custom tailored to the individual user’s preferences in grip length, grip size, as well as slide length and sight radius are all highly desirable features. Why stop there, when you can have even more customization options when upgrading to a drop-in GGP320 slide.

These GGP320 slides offers enhanced aesthetic features, increased grip serrations and an improved coating without compromising function. We also took our hybrid MRDS optic cut and added a third option, the SIG ROMEO1. Now you have to option to use a ROMEO1 as well as a Trijicon RMR or Leupold DeltaPoint Pro right out of the box without using bulky adapter plates that only raise the optic further above the bore axis. Available in Grey or Black DLC finish for corrosive and abrasion resistance, the GGP320 will also be available in Cerakote to better match the Coyote Tan Grip Modules used in the M17 and M18 issued pistols. The GGP320 is a drop-in install that comes with all the enhancements that professional handgun shooters have come to expect from Grey Ghost Precision.

MSRP $418.95
Our Price: $384.75
Savings: $34.20
GGP320FBLK1 GGP Slide for Sig Sauer P320 Fullsize V1 Black

The adoption of the P320® platform by the U.S. Military, as well as many Law Enforcement agencies, professional lead farmers, competition shooters, and firearm instructors led to the development of a new line of GGP aftermarket slides. After all, the P320’s ability to be custom tailored to the individual user’s preferences in grip length, grip size, as well as slide length and sight radius are all highly desirable features. Why stop there, when you can have even more customization options when upgrading to a drop-in GGP320 slide.

These GGP320 slides offers enhanced aesthetic features, increased grip serrations and an improved coating without compromising function. We also took our hybrid MRDS optic cut and added a third option, the SIG ROMEO1. Now you have to option to use a ROMEO1 as well as a Trijicon RMR or Leupold DeltaPoint Pro right out of the box without using bulky adapter plates that only raise the optic further above the bore axis. Available in Grey or Black DLC finish for corrosive and abrasion resistance, the GGP320 will also be available in Cerakote to better match the Coyote Tan Grip Modules used in the M17 and M18 issued pistols. The GGP320 is a drop-in install that comes with all the enhancements that professional handgun shooters have come to expect from Grey Ghost Precision.

MSRP $429.95
Our Price: $394.95
Savings: $35.00
GGP320FFDE1 GGP Slide for Sig Sauer P320 Fullsize V1 FDE

The adoption of the P320® platform by the U.S. Military, as well as many Law Enforcement agencies, professional lead farmers, competition shooters, and firearm instructors led to the development of a new line of GGP aftermarket slides. After all, the P320’s ability to be custom tailored to the individual user’s preferences in grip length, grip size, as well as slide length and sight radius are all highly desirable features. Why stop there, when you can have even more customization options when upgrading to a drop-in GGP320 slide.

These GGP320 slides offers enhanced aesthetic features, increased grip serrations and an improved coating without compromising function. We also took our hybrid MRDS optic cut and added a third option, the SIG ROMEO1. Now you have to option to use a ROMEO1 as well as a Trijicon RMR or Leupold DeltaPoint Pro right out of the box without using bulky adapter plates that only raise the optic further above the bore axis. Available in Grey or Black DLC finish for corrosive and abrasion resistance, the GGP320 will also be available in Cerakote to better match the Coyote Tan Grip Modules used in the M17 and M18 issued pistols. The GGP320 is a drop-in install that comes with all the enhancements that professional handgun shooters have come to expect from Grey Ghost Precision.

MSRP $429.95
Our Price: $394.95
Savings: $35.00
GGP320FGRY1 GGP Slide for Sig Sauer P320 Fullsize V1 Gray

The adoption of the P320® platform by the U.S. Military, as well as many Law Enforcement agencies, professional lead farmers, competition shooters, and firearm instructors led to the development of a new line of GGP aftermarket slides. After all, the P320’s ability to be custom tailored to the individual user’s preferences in grip length, grip size, as well as slide length and sight radius are all highly desirable features. Why stop there, when you can have even more customization options when upgrading to a drop-in GGP320 slide.

These GGP320 slides offers enhanced aesthetic features, increased grip serrations and an improved coating without compromising function. We also took our hybrid MRDS optic cut and added a third option, the SIG ROMEO1. Now you have to option to use a ROMEO1 as well as a Trijicon RMR or Leupold DeltaPoint Pro right out of the box without using bulky adapter plates that only raise the optic further above the bore axis. Available in Grey or Black DLC finish for corrosive and abrasion resistance, the GGP320 will also be available in Cerakote to better match the Coyote Tan Grip Modules used in the M17 and M18 issued pistols. The GGP320 is a drop-in install that comes with all the enhancements that professional handgun shooters have come to expect from Grey Ghost Precision.

MSRP $429.95
Our Price: $394.95
Savings: $35.00
CALX-320C-9-BSS Sig Sauer CALX Kit P320 Compact 9MM Black 15 Round

MODEL P320
RESTRICTIONS Mags (11-15rds)
CALIBER 9mm Luger
MAGAZINE CAPACITY 15 rounds

The modular P320 allows you to select any of several centerfire calibers. Just disassemble the pistol and reassemble it with the X-Change Kit's barrel/slide assembly, grip module, and 15 round magazine. Not compatible with manual safety models of the P320.

MSRP $399.00
Our Price: $395.95
Savings: $3.05
CALX-320CA-9-BSS Sig Sauer CALX Kit P320 Carry 9MM Black 17 Round

MODEL P320
RESTRICTIONS Mags (>15rds)
CALIBER 9mm Luger
MAGAZINE CAPACITY 17 rounds

The modular P320 allows you to select any of several centerfire calibers. Just disassemble the pistol and reassemble it with the X-Change Kit's barrel/slide assembly, grip module, and 17 round magazine. Not compatible with manual safety models of the P320.

MSRP $399.00
Our Price: $395.95
Savings: $3.05
CALX-320SC-9-BSS Sig Sauer CALX Kit P320 Sub Compact

MODEL P320
RESTRICTIONS Mags (1-10rds)
CALIBER 9mm Luger
MAGAZINE CAPACITY 10 rounds

The modular P320 allows you to select any of several centerfire calibers. Just disassemble the pistol and reassemble it with the X-Change Kit's barrel/slide assembly, grip module, and 10 round magazine. Not compatible with manual safety models of the P320.

MSRP $399.00
Our Price: $395.95
Savings: $3.05
CALX-320CA-9-TAC-TB Sig Sauer CALX Kit P320 Carry TC 9MM Threaded Black

MODEL P320
RESTRICTIONS Mags (>15rds)
CALIBER 9mm Luger
MAGAZINE CAPACITY 21 rounds

The modular P320 allows you to select any of several centerfire calibers. Just disassemble the pistol and reassemble it with the X-Change Kit's barrel/slide assembly, grip module, and 21 round magazine. Not compatible with manual safety models of the P320.

MSRP $599.00
Our Price: $594.50
Savings: $4.50