Fly Line Visible in Foreground as Man Starts Back Casting

4wt Fly Line for Small Fish

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Montana Casting Co. MC-30M Fly Line Front of Box
Montana Casting Co. MC-30M Fly Line Back of Box

MC-30 4wt Fly Line

Regular price $69.00 USD
Regular price Sale price $69.00 USD
4-Weight
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Montana Casting Co. MC-38 Fly Line Front of Box
Montana Casting Co. MC-38 Fly Line Back of Box

MC-38 4wt Fly Line

Regular price $69.00 USD
Regular price Sale price $69.00 USD
4-Weight
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Montana Casting Co. MC-40 Fly Line Front of Box
Montana Casting Co. MC-40 Fly Line Back of Box

MC-40 4wt Fly Line

Regular price $69.00 USD
Regular price Sale price $69.00 USD
4-Weight
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4wt Fly Line for Your Small Fish Adventures 

Do you need a weight-forward fly line for small streams? Or are you looking for a line with a classic cast for bigger waters? With 3 different line designs to choose from, we have a 4wt line that will work wherever your fly fishing trips take you. Looking for a different line weight? Check out our entire lineup of fly line. All of our precision-engineered fly lines are designed to deliver a smooth and accurate cast and have been rigorously tested on Montana waters by our crew of Montana Casting Co. field testers. 

Save 15% Any Time When You Build a Combo Using Our Outfit Builder

Use our Outfit Builder to build a fly rod-reel combo and get 15% OFF. Outfits include rod, reel, fly line, leader, rod and reel case, rod sock, and reel spooling.