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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
Produced:2005 - 2014
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
Gun Value
MSRP:$1,499.00Used Est:$1,125.00
Last Update:2/4/2023
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.

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
About the Cartridge

This cartridge was developed by John Browning and was adopted by the United States Ordnance Department along with the Colt-Browning automatic pistol in 1911. It has also been made the official military handgun chambering by several other governments, notably Argentina, Mexico and Norway. The 45 Automatic is the most powerful military handgun cartridge in use today. This is a heavy and powerful sub-sonic round. Although its muzzle energy can exceed 400 ft-lbs, its velocity and bullet weight creates a steep trajectory curve that limits its effective range to self-defense distances.

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