Desert Tech MDRX BLK LBL ALX 20 Handguard FDE ACC0285. The MDRX ALX 20 is the ultimate upgrade for all MDR and MDRX rifles. Specifications for Desert Tech MDRX BLK LBL ALX 20 Handguard: Manufacturer: Desert Tech Gun Rail: M-LOK Handguard Material: 6061...