Selected Handgun Detail

SIG
Model P320 X-Five
SIG Pistol P320 X-Five .40 S&W Variant-1
Scale To:
Gun Dimensions Width:1.5-in
Length:8.5-in Height:6.5-in
Barrel:5-in Weight:36-oz
1 Variant
Gun Rankings
  • Power Factor (180 grain bullet)189180
  • Recoil Factor (180 grain bullet)6.81 ft-lb
  • Total Capacity22 rounds
  • ConcealabilityFair
  • Defense Factor100%
Gun Specifications
Type:Pistol
Caliber:.40 S&W
Action:recoil operated semi-automatic
Trigger:striker single-action (SA)
Safety:no manual safety
Magazine:21-round
Frame:black polymer
Grip:integrated polymer
Sights:fiber-optic front, adjustable rear
Notes:Nitron finish slide
Manufacturer
SIG SAUER GmbH & Co. KG
More Info
About the Gun

The P320 X-Five is a full-size, striker-fired polymer competition pistol built on the X-Series platform. It pairs a 5-inch bull barrel and full-length slide with an X-Series grip module that includes an extended beavertail, higher undercut, and removable flared magwell. The slide features lightening cuts on the top and enhanced serrations, and early examples used a flat-faced X-Series trigger along with Dawson fiber-optic front and adjustable rear sights. An accessory rail is standard, and the slide is prepared for optics. The model was offered in 9mm and .40 S&W with a Nitron-finished stainless steel slide.

Production

Production ran from 2017 through 2020.

Market value
Last updated: 7/27/2026

MSRP at production was around $800–$1,000. Current used market value for examples in good to very good condition ranges $450–$700.

Cartridge Specifications
Cartridge: .40 Smith & Wesson
Alias: N/A
More Info
Ballistics for This Gun
Selected Bullet Mass:180 grains
MV:1051 ft/sec ME:442 ft-lbs
Analysis

SIG introduced the X-Five to give the P320 platform a dedicated competition-oriented configuration. The longer bull barrel, weighted grip options, flared magwell, and improved sights were intended to deliver better control, faster reloads, and a longer sight radius for practical shooting disciplines. It represented the high end of the early X-Series lineup before the later Legion versions added tungsten-infused frames and further refinements. The .40 S&W version had a shorter production run than the 9mm, consistent with SIG’s broader shift away from that caliber. The X-Five established the competition direction that subsequent P320 models, including the X-Five Legion, continued to develop.

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