STI HD C3.6 9mm Compact 1911, 3.6 in Bull Barrel, Aluminum-Alloy Frame, 15+1, HD HOST Interface, Accessory Rail
The STI HD C3.6 is a compact, single-action 9mm built on a 1911-style platform with a 3.6 in bull, non-threaded barrel and a steel slide featuring lightening windows, venting, and the HD HOST optic interface with its HD/SRO-marked cover plate. An aluminum-alloy frame with a full-length dust cover and 3-slot accessory rail keeps weight low while preserving rigidity. It includes four 15-round steel magazines and factory documentation, with markings that confirm manufacture in Florence, Texas, USA.
This pistol presents iron sights with a green-dot front blade, an ambidextrous thumb safety, a left-side magazine release, and a firing pin block. The textured polymer grip module with the Staccato star logo omits a grip safety for a streamlined setup, and the skeletonized trigger uses lightening cuts.