Sig Sauer 8901480 Black Polymer Fits P320/M17/M18

The Sig Sauer 8901480 is a factory polymer grip module engineered for shooters who want a direct replacement or upgrade for their P320, M17, or M18 platform pistol. This full-size X-Series grip is built to Sig's specifications and drops in as a straightforward swap for your existing grip module—no gunsmithing required. Medium circumference design suits most hand sizes, and the black polymer construction is durable enough for duty, competition, or range use.

Compatibility is straightforward: this grip module works with all P320 Full Size X-Series Fire Control Units and is rated for 9mm, .40 S&W, and .357 SIG cartridges. It accommodates the 4.7", 3.9", and 3.6" slide configurations, so whether you're running a standard full-size slide or one of the shorter variants, this module will fit. The magazine disconnect function is supported, which means safe magazine removal in most P320 configurations.

If you own a P320, M17, or M18 and want a backup grip, need to replace a worn module, or simply prefer the feel of this particular geometry, a factory-original module ensures zero guesswork about fit or finish. Black polymer is easy to clean and resists wear in the field or at the bench.

Key Features

• Factory Sig Sauer replacement grip module for P320 Full Size X-Series
• Compatible with M17 and M18 platforms
• Medium grip circumference for standard hand fit
• Works with 9mm, .40 S&W, and .357 SIG Fire Control Units
• Accommodates 4.7", 3.9", and 3.6" slide lengths
• Supports magazine disconnect feature
• Durable black polymer construction

Specifications

Brand	Sig Sauer
Model	P320FS X-Series, M17, M18
Pistol Size	Full-Size X-Series
Grip Material	Standard Polymer
Color	Black
Grip Circumference	Medium
Compatible Cartridges	9mm, .40 S&W, .357 SIG
Compatible Slide Lengths	4.7", 3.9", 3.6"
Magazine Disconnect Compatible	Yes

Frequently Asked Questions

Will this grip module fit my P320 Compact or Subcompact?

No. This is a full-size X-Series grip module. P320 Compact and Subcompact models require their own appropriately sized grip modules.

Does this work with my M17 or M18?

Yes. This grip module is compatible with both the M17 and M18 platforms, as well as the P320 Full Size X-Series.

What Fire Control Unit calibers does this support?

This grip module is compatible with Fire Control Units chambered in 9mm, .40 S&W, and .357 SIG only.

Which slide lengths will work with this grip?

This module accommodates 4.7", 3.9", and 3.6" slide configurations on the P320 Full Size X-Series platform.