Selected Handgun Detail

SIG
Model P320 Nitron
SIG Pistol P320 Nitron .45 Auto Variant-1
Scale To:
Gun Dimensions Width:1.4-in
Length:8-in Height:5.5-in
Barrel:4.7-in Weight:29.4-oz
1 Variant
Gun Rankings
  • Power Factor (230 grain bullet)192970
  • Recoil Factor (230 grain bullet)8.87 ft-lb
  • Total Capacity11 rounds
  • ConcealabilityFair
  • Defense Factor83%
Gun Specifications
Type:Pistol
Caliber:.45 Auto
Action:recoil operated semi-automatic
Trigger:striker single-action (SA)
Safety:no manual safety
Magazine:10-round
Frame:black polymer
Grip:integrated polymer
Sights:SIGLITE night sights
Notes:Nitron finish slide
Manufacturer
SIG SAUER GmbH & Co. KG
More Info
About the Gun

The P320 is a polymer-framed service pistol designed with the input of law enforcement officers. The result is an operator-safety focused striker duty pistol. Taking into account the concerns of military and police training officers, the P320 does not require the operator to pull the trigger nor use a special tool to take-down the firearm for cleaning or routine maintenance. It features a modular grip frame and removable fire control assembly, interchangeable grip panels, lower Picatinny rail, front and rear slide serrations.

Production

Production of this firearm with the specified features began in 2014 and continues to be manufactured as part of an ongoing lineup, with various updates and configurations introduced over the years to meet evolving demands.

Market value
Last updated: 7/10/2025

The MSRP for this gun is approximately $679. Used market value in 95% condition is around $450-$500, based on recent 2024-2025 auction and pricing data.

Cartridge Specifications
Cartridge: .45 Automatic
Alias: .45 Automatic Colt Pistol (ACP)
More Info
Ballistics for This Gun
Selected Bullet Mass:230 grains
MV:839 ft/sec ME:360 ft-lbs
Analysis

This .45 Auto pistol offers a compelling package for shooters seeking a full-size duty or personal defense firearm. Its accuracy is noteworthy, delivering consistent groupings at typical engagement distances, thanks to a well-designed barrel and sight system. Ergonomically, the grip provides a natural point of aim with customizable backstraps to fit various hand sizes, enhancing control during extended sessions. Reliability is a key asset, with the firearm cycling smoothly even under adverse conditions, making it a dependable choice for critical use. However, maintenance can be somewhat involved, requiring attention to detail for proper care of the modular design. Parts availability may pose challenges in some regions, potentially delaying repairs. The trigger pull is crisp, averaging around 6 pounds, which suits most users, though some may find it slightly heavy. Felt recoil is manageable for the caliber, though newer shooters might need acclimation to the kick.

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