Killflash/ARD - Primary Arms GLx MD-21s

Boost the performance of your Primary Arms GLx MD-21 with our precision-designed Killflash / Anti-Reflection Device (ARD) — engineered to minimize lens glare, eliminate telltale reflections, and add a layer of protection to your optic. Whether you’re on the range or in the field, this upgrade helps preserve concealment while keeping your sight picture sharp and clear.

Compact, rugged, and purpose-built for shooters who demand clarity, control, and durability.

Key Features:
Secure Fitment – Custom-fit for the Primary Arms GLx MD-21 to ensure a snug, no-rattle installation.
Glare Reduction – Cuts down reflective glare to help maintain a low profile and crisp target view.
Lens Protection – Guards your objective lens from dust, debris, and light impacts.
Durable Construction – Built from proven materials that balance strength and light weight.

MADE IN THE USA. BACKED BY THE LUPUS 9 LABS LIMITED LIFETIME WARRANTY.