STI C3.6 HD 9mm Compact Pistol, 3.6 inch Bull Barrel, Optics-Ready HD HOST, 15+1 Capacity, Aluminum Frame
The STI C3.6 HD stands out as a compact, double-stack 9mm with a 3.6 inch bushingless bull barrel, an optics-ready slide using the HD HOST interface, and an integral three-slot accessory rail. It pairs a 7075-T6 aluminum frame with a textured polymer grip module and includes two 15-round magazines. Markings include "STACCATO C3.6" and "20★11 HD," with proof marks reading "STACCATO FLORENCE TX."
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Minor superficial scratches and small blemishes are present on the exterior surfaces.
What’s Included
- 2x 15-round metal double-stack magazines with witness holes
- Staccato-branded soft pistol case
- Staccato HD Owner's Manual
- Staccato factory test target card
- Hex keys (in factory bag)
The C3.6 HD is a compact, single-action 9mm Luger built around a 3.6 inch bushingless, bull-profile barrel that sits flush with the slide nose. The slide features forward and rear serrations, angled relief cuts, and a lowered/flared ejection port for clean extraction. Fixed sights consist of a dovetailed front post with a single dot and a square-notch rear blade.
Its slide is optics-ready via the HD HOST interface with a removable top plate, and the current configuration includes an optic cut with a cover plate installed. An integral three-slot accessory rail on the dust cover supports common weapon lights or accessories.
The frame is 7075-T6 aluminum paired with a textured polymer grip module that carries the molded Staccato star and a subtle flared magwell for smooth reloads. Controls include a left-side magazine release, ambidextrous thumb safety, and a firing pin block, with an external hammer driving the single-action system.
Capacity is 15+1 using the included double-stack magazines, which have witness marks to 15. Slide markings read "STACCATO C3.6" and "20★11 HD," and the pistol bears "STACCATO FLORENCE TX" proof marks, with manufacture noted as USA.