Firefield FF34057: The Firefield Edge Carbine Length 2-Piece M-LOK Rail merges an aggressive handguard design with an accessory attachment system robust enough to handle every piece of equipment you need on your next mission. This multipurpose handguard and rail system boasts lightweight yet heavy-duty aircraft-grade 6061-T6 hard-anodized matte black aluminum and a precision-machined design. Its a simple 2-piece construction allows the rail to be mounted to any drop-in style rail system using virtually no tools.