Selected Handgun Detail

STI International
Model Duty One
STI International Pistol Duty One .45 Auto Variant-2
Scale To:
Gun Dimensions Width:No Data
Length:8.5-in Height:No Data
Barrel:5-in Weight:37.2-oz
Variant 2 of 2
Gun Rankings
  • Power Factor (230 grain bullet)195500
  • Recoil Factor (230 grain bullet)7.17 ft-lb
  • Total Capacity9 rounds
  • ConcealabilityFair
  • Defense Factor79%
Gun Specifications
Type:Pistol
Caliber:.45 Auto
Action:recoil operated semi-automatic
Trigger:single-action (SA)
Safety:grip safety, manual thumb safety
Magazine:8-round
Frame:blued steel
Grip:cocobolo
Sights:fixed blade front, low mount rear
Notes:accessory rail
Manufacturer
STI International
More Info
About the Gun

The Duty One pistol is built on STI's government size frame with integral tactical rail and 30 lpi checkering on the front strap. The tactical rail milled into the dust cover of the frame accepts all industry standard light mounts. The safety controls are ambidextrous thumb safeties and a high rise beavertail grip safety. The slide features include lowered and flared ejection port, fixed rear sight and front and rear cocking serrations. The barrel is a 5.0' fully supported ramped bull barrel. The Duty One comes standard with a STI RecoilMaster guide rod system, commander style hammer and patented trigger system.

Production

This firearm was produced between 2005 and 2015. Specific production dates may vary within this range, depending on the model variant and factory records, but this timeframe reflects the general availability of this particular configuration during that period.

Market value
Last updated: 7/10/2025

The MSRP for this gun is approximately $1,399. In 95% condition, the used market value in 2024-2025 ranges from $900 to $1,100, depending on specific features and market demand.

Cartridge Specifications
Cartridge: .45 Automatic
Alias: .45 Automatic Colt Pistol (ACP)
More Info
Ballistics for This Gun
Selected Bullet Mass:230 grains
MV:850 ft/sec ME:369 ft-lbs
Analysis

This .45 Auto pistol demonstrates notable precision, thanks to its well-crafted barrel and tight tolerances, making it a reliable choice for target shooting or duty use. The ergonomic design of the grip offers a comfortable hold, accommodating a variety of hand sizes with ease, while the controls are intuitively placed for quick access. Reliability is a strong point, with consistent performance even under demanding conditions. However, maintenance can be somewhat challenging due to the complexity of certain components, requiring more time and care than simpler designs. Availability of replacement parts may also pose an issue for some users, as they are not as widely stocked as more common models. The trigger pull is crisp, averaging around 4.5 pounds, which aids in accuracy, though the felt recoil is pronounced, potentially affecting shooters unaccustomed to the .45 caliber’s feedback. Overall, it’s a capable firearm with specific considerations.

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