Command Arms Low Profile Flip Up Front Sight Secure mounting to any Picatinny rail. Square center lug eliminates any movement Super low profile sights are manufactured from polymer and aluminum to reduce weight No tool needed for elevation adjustment Designed for AR-15 and other tactical rifles Provides tool-less elevation adjustment Ambidextrous sight releases quickly and resists damage (Innovative Breakaway Design) Aluminum base acts as heat sink to replace polymer Lifetime Warranty