Selected Handgun Detail

STI International
Model Sentinel Premier
STI International Pistol Sentinel Premier .45 Auto Variant-2
Scale To:
Gun Dimensions Width:No Data
Length:8.5-in Height:5.5-in
Barrel:5-in Weight:36.7-oz
Variant 2 of 2
Gun Rankings
  • Power Factor (230 grain bullet)195500
  • Recoil Factor (230 grain bullet)7.27 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:forged steel
Grip:checkered black plastic
Sights:tritium night sights
Notes:
Manufacturer
STI International
More Info
About the Gun

The Sentinel Premier is built on a forged steel, government length, standard width frame that includes a 30 LPI checkered front strap, checkered steel mainspring housing, and custom blended magwell. The controls are a blued steel single sided thumb safety and knuckle relief high-rise beavertail grip safety. The slide features traditional 1911 styling with STI front and rear cocking serrations, oversized ejection port, and is flat topped with Diamond LPI.

Production

Production of this specific model began in 2008 and continued through 2015. It was crafted during a period when demand for high-quality, precision firearms was on the rise, reflecting the manufacturer’s commitment to excellence in design and performance.

Market value
Last updated: 7/10/2025

The MSRP for this gun is approximately $1,557. In 95% condition, the used market value in 2024-2025 ranges from $1,200 to $1,400, based on recent online marketplace trends and pricing guides.

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 from a well-regarded manufacturer demonstrates notable precision, often achieving tight groupings at 25 yards under controlled conditions. Its ergonomic design, with a contoured grip and well-placed controls, accommodates a variety of hand sizes, enhancing user comfort during extended range sessions. Reliability is a key asset, with consistent performance across thousands of rounds when properly maintained. However, upkeep can be demanding, as the tight tolerances require regular cleaning and lubrication to prevent malfunctions. Availability of replacement parts may also pose a challenge for some owners, potentially leading to delays in repairs. The trigger pull is crisp, averaging around 4.5 pounds, offering a clean break that aids in shot placement. Felt recoil, while manageable for experienced shooters, might be pronounced for novices due to the robust caliber, necessitating proper grip and stance to maintain control.

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