Staccato HD C3.6

The HD C3.6 is the smallest Staccato HD and the closest the 2011 platform has come to a true subcompact carry pistol. At 24 oz with a 7075 aluminum frame, 3.6" bull barrel, 7.1" overall length, and 4.8" height, it sits inside the same envelope as a Glock 26 while keeping 2011 trigger geometry, 15+1 capacity, and Glock 19 magazine compatibility for higher-capacity backup mags.

The 0.4" barrel reduction versus the C4X is the headline change. Going from 4.0" to 3.6" cuts overall length by half an inch and pulls the muzzle behind the trigger guard, making AIWB carry significantly more practical. The HOST optic system, ambidextrous controls, billet 7075 frame, and external extractor carry over from the larger HDs unchanged. The same 4.0 to 4.5 lb single-action trigger ships from the factory.

The trade-off versus the C4X is the loss of the integrated compensator. The C3.6 runs a conventional bull barrel without porting, so muzzle rise will be more noticeable than on the comp-equipped C4X. For carry purposes that is the correct call: the C3.6 is built to conceal first, and a short comp barrel adds dwell time and gas handling complexity that hurts reliability with carry-grade hollow points.

On August 13, 2026, the Department of Energy published a sole-source notice identifying the HD C3.6 Preferred Package and a Trijicon RMR optic mounting kit as its intended concealed-carry system for federal law-enforcement personnel performing executive-protection duties. The requirement also calls for annual inspections, agency armorer training, train-the-trainer support, a lifetime warranty, and an officer-involved-shooting loaner program. DOE lists September 18, 2026, as the anticipated award date. This is an intent to award, not an awarded contract, and the notice gives no quantity.