Shop › FORTIS SWITCH RAIL 13.8 MLOK MOD 1 FORTIS SWITCH RAIL 13.8 MLOK MOD 1 $227.95 Fortis Manufacturing, Inc. Switch Mod 1, Handguard, Black, MLOK, Fits AR-15, 13.8" 556-SWITCH-M1-138-ML Quantity: Add To Cart Added! Fortis Manufacturing, Inc. Switch Mod 1, Handguard, Black, MLOK, Fits AR-15, 13.8" 556-SWITCH-M1-138-ML