Open Center Killflash ARD for Sig Romeo 5 Red Dot | Hammy3DPrints

Meet the Open Center Killflash ARD from Hammy3DPrints, a friction fit accessory designed for the Sig Romeo 5 red dot optic. It slides onto the end of the sight and preserves a clear center view while reducing glare from external light. Installation requires a deliberate press to seat the part securely, and note that this version is not compatible with the XDR or Gen II models.

What this does for your day at the range

The hex honeycomb pattern provides the familiar killflash look while the open center lets you keep the central reticle visible. This arrangement is intended to minimize visual disruption and help you maintain awareness of the target. The result is a more focused viewing experience in bright environments without blocking the center of your optic.

• Reduces glare and reflections on the objective glass
• Ensures a tight friction fit that stays put during handling
• The center opening helps you keep the center of the sight unobstructed
• PETG CF material adds heat resistance for field use
• Proudly designed and printed in the United States

Design and materials you can trust

The product uses PETG CF material, a carbon fiber reinforced filament known for strength and temperature resistance compared with simpler filaments. This makes it well suited to outdoor and field conditions where a protective add on may experience heat and exposure. If you notice a slight sheen from how the part was printed, a light sanding or a spray finish can reduce shine while preserving the hex pattern visibility.

About the build and origin

Hammy3DPrints brings more than a decade of 3D printing experience to this model. The original design concept originates in St Louis, Missouri, where many of our fixtures are conceived and produced. With a focus on practical, tool-free mounting, this accessory aims to slot into your setup quickly and stay ready for action.

Compatibility and care

Make sure this version is compatible with the Sig Romeo 5 only. It does not fit the XDR or Gen II variants. For best results, handle with care during installation and avoid forcing the fit beyond reasonable resistance.