Ultradyne USA C4 AR-15 Folding Iron Sights

Optimize Accuracy with a Revolutionary Sighting System See and shoot the difference with Ultradyne's Dynalign sighting system, available in front, rear, or full backup sight sets. Most BUIS systems utilize a sight picture that is non-intuitive. The brain's visual systems are asked to align a circular rear aperture with a rectangular front post shape while [...]