Introducing | The SI Megafins XL Rail in Redline

The Mega Fins-XL Handguard Line is the flagship free float rail from Strike Industries. SI is finally offering a wider handguard rail system available in both M-Lok and Key-Mod versions ranging in lengths 7”, 10”, 11”, 12”, 15”, 16.25” and 17”! All lengths except the 7” model feature an integrated, adjustable; flip up front sight, which folds down flush to the rail for the ability to still mount over if desired. With an internal diameter of 1.51” you can run recessed suppressed or have room for larger diameter muzzle devices if needed. The Strike Industries Mega Fins XL is the ultimate addition to the AR product line!

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Package includes

  • 1x Mega Fins XL (Size of your choice) MLOCK or KEYMOD Handguard Rail
  • 1x Mounting Hardware Kit
  • 1x Barrel Nut
  • 1x Barrel Nut Wrench

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  • Integrated, adjustable; flip up front sight (7″ does not have front sight, nor will it fit a suppressor)
  • 1.51” internal Diameter
  • Available in M-Lok and Key-Mod Versions
  • 7 different lengths available



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