The HexCap is One Hundred Concepts' original invention - a rugged, snap-fit, killflash-style anti-reflection device (ARD) engineered to eliminate optic glare and protect your lens. Each HexCap is precision-fit to specific red dot sight models from leading brands such as EOTech, Trijicon, Vortex, Primary Arms, Aimpoint, Sig Sauer, Holosun, Leupold, and Steiner. Unlike most OEM and imitation ARDs, the HexCap is lighter, tougher, and built for field use. It protects your glass from scratches, dirt, and debris while reducing signature - trusted by professionals, hunters, and serious shooters worldwide.