The patented full cover rail covers clip directly onto Picatinny rail configurations. They form a full cover handguard and rail protector. Features: Provides Rubbery Grip Surface For Improved Weapon Control Protects the operator from sharp objects Protects unmounted rail areas from damage Prevents damage to gear, suck as gloves Covers provide a rubbery surface for improved weapon control Easily cut for custom fitting Covers 15 Slots Mounts to any MIL STD 1913 (Picatinny) rail.