Does Optic Size Matter?

How much does pistol red-dot window size actually matter? Joel Park and I compare large and small optic windows for competition shooting, duty use, and concealed carry. We discuss the Holosun 507 Pro Max, 507Comp, Trijicon RMR, Vortex Defender XL, and other popular pistol optics. We also cover holster compatibility, concealment considerations, index margin for error, and the practical differences between open and closed emitters. Follow me on Instagram for more shooting instruction, training, and gear content: @kyle.mcnabb.actual For class, agency, and hosting inquiries: kylemcnabbtraining@gmail.com 0:00 Does Pistol Optic Window Size Matter? 1:03 Holosun 507 Pro Max Window Size 1:43 Does a Bigger Window Improve Shooting? 2:38 Trijicon RMR vs. Larger Optics 3:11 Competition Red Dot Options 4:06 Competition vs. Duty Optics 4:56 Duty Holster Fit and Durability 6:10 Larger Windows and Margin for Error 6:57 Open vs. Closed Emitter Optics 8:24 Red Dots in Rain and Snow 9:16 Testing Water in an Open Emitter 11:27 Optic Size for Concealed Carry 12:32 Finding the Right Carry Optic Size 13:32 Final Pistol Optic Recommendations