Yankee Hill Machine Quick Deploy Rear Sight for AR-15

The Yankee Hill Machine Quick Deploy Sight (QDS) rear sight for AR-15 features an automatic deploy system that springs the sight up with the push of a button. Both front and rear sights lock positively in the folded and deployed positions. Constructed from aircraft-grade aluminum with hardcoat anodized matte black finish to military specifications or better. Low-profile design measures just 0.435 inches from the rail when folded, minimizing snag points while keeping the sight ready for instant deployment.