Desert Tech MDRX BLK LBL ALX 16 Handguard FDE ACC0283. The MDRX ALX 16 is the ultimate upgrade for all MDR and MDRX rifles. Specifications for Desert Tech MDRX BLK LBL ALX 16 Handguard: Manufacturer: Desert Tech Gun Rail: M-LOK Handguard Material: 6061...