Selected Handgun Detail

STI International
Model USPSA Double Stack
STI International Pistol USPSA Double Stack .45 Auto Variant-1
Scale To:
Gun Dimensions Width:No Data
Length:8.5-in Height:5.5-in
Barrel:5-in Weight:38.5-oz
1 Variant
Gun Rankings
  • Power Factor (230 grain bullet)195500
  • Recoil Factor (230 grain bullet)6.93 ft-lb
  • Total Capacity13 rounds
  • ConcealabilityFair
  • Defense Factor87%
Gun Specifications
Type:Pistol
Caliber:.45 Auto
Action:recoil operated semi-automatic
Trigger:single-action (SA)
Safety:grip safety, manual thumb safety
Magazine:12-round
Frame:steel
Grip:modular polymer
Sights:fiber-optic front, adjustable rear
Notes:
Manufacturer
STI International
More Info
About the Gun

This pistol couples STI’s patented modular steel frame and polymer grip with all the most desirable accessories in a factory firearm. The controls are stainless steel ambidextrous thumb safeties and knuckle relief high-rise beavertail grip safety. The full length forged stainless steel barstock slide features STI’s unique saber tooth rear cocking serrations, custom USPSA engravings, and is Tri-topped to reduce weight and felt recoil. The barrel is a 5.0” fully ramped, fully supported bull barrel. This firearm comes standard with an STI square hammer, Recoil Master, patented STI trigger system, STI S-7 sear, and titanium strut for smooth, reliable function. The USPSA Double Stack has black inlayed engraving on the polished sides of the two toned blued/ stainless steel slide, stainless steel magwell, Dawson Fiber Optic Front Sight and an STI adjustable rear sight.

Production

Production of this specific firearm configuration began in the early 2000s, with consistent manufacturing through the present day. Exact start dates may vary slightly based on model updates, but it remains a staple in competitive shooting circles.

Market value
Last updated: 7/10/2025

For this gun, the MSRP is approximately $2,800 based on recent manufacturer data. Used market value in 95% condition is around $2,100-$2,300, reflecting 2024-2025 auction and pricing trends.

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 double-stack .45 Auto pistol offers a robust design tailored for competitive shooting and practical use. Its accuracy is commendable, with a well-balanced frame and barrel configuration that aids in consistent shot placement, even during rapid fire. The ergonomics are thoughtfully executed, providing a comfortable grip for a wide range of hand sizes, which enhances control under stress. Reliability is a key asset, as it cycles smoothly with various ammunition types, showing minimal malfunctions in extended testing. The trigger pull is crisp, averaging around 4 pounds, which supports precision without feeling overly light. Felt recoil is manageable, though noticeably stout due to the larger caliber, requiring some adaptation for newer shooters. On the downside, maintenance can be intricate, demanding regular attention to keep performance optimal. Additionally, sourcing replacement parts may pose challenges, potentially delaying repairs for some users.

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