Earmor M31/M32 PLUS/EXFIL M16A-TW Rail Mount Kit Tactical Black. This maximizes the use of the helmet rail enhancing expandability. Features of Earmor M31/M32 PLUS/EXFIL M16A-TW Rail Mount Kit Made from modified nylon material offering superior wear resistance and corrosion resistance. The thickened and reinforced structural design enhances impact resistance. Anti-rust treatment on metal components extends product lifespan. Package Contents: Earmor M31/M32 PLUS/EXFIL M16A-TW Rail Mount Kit Earmor M16A-TW-BK: M31/M32 PLUS/EXFIL M16A-TW Rail Mount Kit Tactical Black