Key Takeaways
- →Planned, not awarded: DOE published the sole-source notice on August 13, 2026. It is a notice of intent, not an awarded contract.
- →Named pistol system: DOE identifies the Staccato HD C3.6 Preferred Package and a Trijicon RMR optic mounting kit for executive-protection personnel.
- →Lifecycle support: The requirement includes annual inspections, armorer training, train-the-trainer support, a lifetime warranty, and an officer-involved-shooting loaner program.
- →Response period closed: Capability statements were due August 28 at noon EDT.
- →Next date: DOE lists September 18, 2026, as the anticipated award date. The notice gives no quantity or contract value.

Staccato HD C3.6
Premium concealed carry with a short 3.6-inch barrel, Glock-pattern magazines, and the HOST optic system
Most concealable HD with 3.6" bull barrel, 24 oz aluminum frame, and Glock 19 magazine compatibility
- +Smallest Staccato HD ever produced
- +24 oz unloaded competes with Glock 19 (22.4 oz)
- +7.1" overall length and 4.8" height land in a G19-class carry envelope
- −No integrated compensator, more muzzle rise than the C4X
- −1.6" width still wider than a Glock 19 (1.34")
- −Aluminum frame less durable long-term than steel-frame HD P4
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What DOE Intends to Buy
The Department of Energy plans to standardize on the Staccato HD C3.6 Preferred Package and a Trijicon RMR mounting kit for federal law-enforcement personnel who perform executive-protection duties. DOE's Office of Headquarters Procurement Services published the sole-source notice for the Office of Environment, Health, Safety and Security on August 13.
The status matters. DOE has announced an intent to award directly to Staccato, but the agency has not announced a contract award. The response period closed August 28 at noon EDT. DOE expects an award on September 18, but that date can move. The notice lists neither a pistol quantity nor a contract value.

The Support Package Is the Real Requirement
DOE is seeking more than pistols and optic hardware. The notice calls for annual weapon inspections, agency armorer training, and train-the-trainer transition support. It also requires a lifetime warranty and a loaner program after an officer-involved shooting.
Those services turn a pistol purchase into a support program. The agency needs people who can inspect and maintain the system each year. It also needs instructors and armorers who can keep the program running after the first delivery. The loaner requirement covers a specific operational gap: a duty pistol may remain in evidence after a shooting, while the officer still needs an approved weapon.

Why the C3.6 Fits the Role
The C3.6 is the smallest pistol in Staccato's HD line. It uses a 3.6-inch bull barrel, a 7075 aluminum frame, and Glock-pattern magazines. Staccato lists a 24-ounce unloaded weight, 15+1 capacity, and a 4.8-inch height. Those dimensions keep the pistol closer to a compact carry gun than a full-size duty pistol.
The Preferred Package adds a DLC-coated barrel, an aluminum curved trigger, and a third magazine. Staccato's HOST system uses footprint-specific hardware for slide-mounted optics. DOE's notice names a Trijicon RMR mounting kit, which points to a defined pistol and optic interface rather than a pistol selected without its sighting system.
The tradeoff is simple. A short, light pistol is easier to conceal under normal clothing, but it gives up some sight radius and mass compared with a larger duty model. That is why the C3.6 occupies a different role from the compensated Staccato HD C4X. Our best 2011 pistols guide compares the C3.6 with the rest of the HD line and other double-stack 1911-style pistols.
RMR-Footprint Pistol Optics
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What This Means for Staccato
The notice gives the HD C3.6 a meaningful federal-duty signal. DOE has named the pistol, package level, optic interface, inspection schedule, and training support it wants for an executive-protection mission. That is stronger evidence of institutional interest than a review or range impression.
It is not yet an adoption claim. An award on September 18 would confirm the purchase path, and the award record may add the quantity, value, or period of performance. Until then, the correct description is DOE's planned sole-source system.
Buyers considering the same optic layout can compare current picks in our pistol red dot guide and check the exact HOST-to-optic pairing with the pistol red dot fit checker. A shared RMR footprint does not replace the correct Staccato HOST mounting hardware.

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What Happens on September 18
September 18 is DOE's anticipated award date. The useful next record is an award notice or contract action that identifies the winner and, if DOE releases them, the quantity and value. The August 13 notice alone does not settle those details.
If DOE completes the sole-source action as planned, the HD C3.6 will move from a named intended system to an awarded federal executive-protection pistol. If the date passes without an award, the notice remains evidence of DOE's intended requirement, not a completed purchase.













