Aperture In Grit

A discarded hollow copper rivet sat upright in an asphalt seam by the drain. Wind whipped across the curb, threatening to whistle through the open tube. I went prone. Extending my rifle barrel forward, I nudged a tiny, dry maple seed husk squarely into the top rim. The metal hollow sealed shut. Total acoustic silence restored. Bracing my shroud against the curb stone, I aligned my scope across the street crosswalk. Zero drift. Perimeter secure.