STI Duty One 5

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Summary: The description, specs, photo, pricing and user ratings for STI’s Duty One 5 pistol.

Manufacturer’s Description

STI‘s Duty One single-stack 1911 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 STI International ambidextrous thumb safeties and an STI International high-rise beavertail grip safety. The slide features include a lowered and flared ejection port, a fixed rear sight and front and rear cocking serrations. The barrel is a 5″ fully supported STI International ramped bull barrel. The Duty One comes standard with a STI RecoilMaster guide rod system, a Commander-style hammer and the patented STI International trigger system.

Note: STI also offers an aluminum-framed version of this pistol, the Duty One Lt 5.0.

The Specs

Caliber Capacity BBL OAL Height Weight
9mm, .40 SW, .45 ACP n/a 5″ 8.5″ n/a 37.2 oz.


MSRP: $1,299

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