FAB Defense M-LOK Compatible Handguard for Mossberg 500/590 Black fx-van500b. Tested to withstand use during rapid fire the Vanguard is built with the professional user in mind. Specifications for FAB Defense M-LOK Compatible Handguard for Mossberg 500/590: Manufacturer: FAB Defense Gun Make: Mossberg Gun Model: Mossberg Model 590 Mossberg Model 500 Gun Rail: M-LOK Included Accessories: Standard Condition: New Gun Type: Rifle Quantity: 1 Features of FAB Defense M-LOK Compatible Handguard for Mossberg 500/590: M-LOK compatible handguard accepts direct attachment M-LOK accessories or M-LOK 1913 Picatinny rail sections Easy installation no Gunsmith required Extremely durable polymer construction Package Contents: FAB Defense M-LOK Compatible Handguard for Mossberg 500/590 What firearm models does the manufacturer say FAB Defense M-LOK Compatible Handguard for Mossberg 500/590 is compatible with? The manufacturer suggests that FAB Defense M-LOK Compatible Handguard for Mossberg 500/590 is compatible with Mossberg Model 500 Mossberg Model 590FAB Defense fx-van500b: M-LOK Compatible Handguard for Mossberg 500/590 Black