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Questions & Answers
Will this work on the M18 P320 Manufacturer Answer

Yes this will, the M18/M17 take standard slide completion kits. If you are building out an M18, you will need the LCI parts as well as the unique M18/M17 coverplate/rear sight as well. Thanks!

by Dan GGP, Manufacturer, February 19, 2025
Are any of the parts aluminum, or all steel? Manufacturer Answer

The backplate is aluminum, the rest of the parts should be steel.

by Grey Ghost, Manufacturer, December 15, 2021
Customer Reviews
Most Recent Reviews
grey ghost slide completion kit review by DRSR, Verified Owner, December 12, 2025
Package arrived around the estimated delivery time, and was unblemished in new condition. Completion kit fit nicely with my grey ghost slide and barrel. Looks good, just waiting on my lower parts to get it done and test it.
Most Recent Reviews
G.G. slide completion kit review by drsr, Verified Owner, November 25, 2025
The grey ghost slide completion kit arrived on time in new condition. The appearance, quality and fit are good. Goes great with the G.G. barrel I ordered from you guys. I am pleased with my purchase.
Most Recent Reviews
great completion kit by Dad the builder, Verified Owner, June 11, 2025
Built out a p320 and needed a slide completion kit. Everything works great, I have had zero issues with the slide since installation.
Most Recent Reviews
brownells slide by Brian, Verified Owner, May 29, 2025
I ordered to put into a Brownells p320 slide…….VERY TIGHT FIT took some finagling to get in but it seems to work fine
Most Recent Reviews
I received the kit with two springs and no plunger. After a quick message to Grey Ghost, they had the part to me within a couple of days. Though I like the product and they were quick to fix the issue, it should not have happened in the first place.
0/1 found this helpful
Most Recent Reviews
Completes the slide wonderfully by Nate miller, Verified Owner, February 2, 2025
Put this in my killer innovation slide and worked flawlessly. Not one malfunction. Scull looks pretty cool too.
Read All 15 Reviews
Gun Make:
SIG Sauer
Gun Model:
SIG Sauer P320, SIG Sauer P320 Carry, SIG Sauer P320 Compact, SIG Sauer P320 Full Size
Included Accessories:
Back Plate, Extractor, Extractor Pin, Extractor Pin Plus, Extractor Spring, P320 Striker Assembly
Condition:
New

Code: 2VP-PP1-GGP201-GGP-SCK-320

MPN: GGP-SCK-320

UPC: 850013536351

List: $91.99Save $7.36
$84.63

Product Info for Grey Ghost Precision Sig Sauer Pistol Slide Completion Kits

All the Parts you need to complete your GGP320 slide or OEM SIG P320 slide assembly.image

This GGP Slide Completion Kit includes nearly all of the internal small parts needed to complete your slide assembly. The kit is compatible with 9mm GGP320 Full-size and Compact slides as well as SIG OEM 320 Full-Size, Compact and Carry slides.

SIG and P320 are federally registered trademarks of Sig Sauer, Inc. and are two of many trademarks owned by Sig Sauer, Inc. Grey Ghost Precision is not affiliate with nor endorsed by Sig Sauer, Inc.

Specifications for Grey Ghost Precision Sig Sauer Pistol Slide Completion Kits:

Manufacturer: Grey Ghost Precision
Gun Make: SIG Sauer
Gun Model: SIG Sauer P320 Carry, SIG Sauer P320 Compact, SIG Sauer P320, SIG Sauer P320 Full Size
Included Accessories: Back Plate, Extractor Pin Plus, Extractor Pin, P320 Striker Assembly, Extractor Spring, Extractor
Condition: New
Projectile Caliber: .355 Caliber

Package Contents:

  • Grey Ghost Precision Sig Sauer Pistol Slide Completion Kits
  • P320 Striker Assembly
  • Extractor
  • Extractor Pin
  • Extractor Spring
  • Extractor Pin Plus
  • Back Plate

Grey Ghost Precision Sig Sauer Pistol Slide Completion Kits Orderable Models

List of Orderable Models

  • Grey Ghost Precision Pistol Slide Completion Kit Compatible with Sig P320, Minus Recoil Rod Assembly, GGP-SCK-320 , MPN: GGP-SCK-320 , UPC: 850013536351 , Code: 2VP-PP1-GGP201-GGP-SCK-320

Grey Ghost Precision Sig Sauer Pistol Slide Completion Kits Unavailable & Discontinued Models

List of Unorderable Models

  • USED, Grey Ghost Precision Pistol Slide Completion Kit Compatible with Sig P320, Minus Recoil Rod Assembly, GGP-SCK-320 , MPN: GGP-SCK-320-EDEMO , Code: 2VP-PP1-GGP201-GGP-SCK-320-EDEMO-IN-D
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