The UTG® M-LOK® Panel Covers are available in black and come in a pack of four. They can be installed directly onto most M-LOK aluminum rail handguards. These rail covers are designed to be low profile and feature a matte black finish. They are made from a polymer that is resistant to heat and impact and have a rubberized surface for improved grip. Each M-LOK® Rail Cover measures 3.15 inches in length, and a set includes four panels along with steel hardware.