Yhm's quick deploy sight system 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 and are made from aircraft quality aluminum and hardcoat anodized matte black to military specifications or better.When folded the sight measures just 0.435 inches from the rail.The front sight mounts on the same plane as the rear and uses standard hardware.This is the standard stem sight set.Set is comprised of yhm-5010 & yhm 5030.Rear Color: BlackType: Flip Up Front/RearFrame Material: Aircraft Grade AluminumFrame Color: Black Hardcoat AnodizedFirearm Fit: AR-15Style: Folding Back Up Sight SetFront Material: AluminumRear Material: AluminumFront Color: BlackFirearm Type: AR Platform