Saltwater Arms Blackfin™ Pistol 5.56 AR15 — 7.5" Barrel — 7" M-LOK Handguard

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The Saltwater Arms Blackfin AR15 Pistol chambered in 5.56 is designed from the ground up to meet the rigorous demands of maritime environments. The pistol is corrosion-resistant and suitable for saltwater and freshwater alike. The pistol features stainless steel and other corrosion-resistant components and is compatible with most AR-platform accessories and furniture.

All Saltwater Arms branded firearms, assemblies and components come with a lifetime manufacturer’s warranty. Outerwild MFG supports and warranties all Saltwater Arms products. Any questions please contact us at

Complete Pistol:

  • Caliber: 5.56 NATO
  • Length: 23.5" Stock Collapsed, 26.25" Stock Extended
  • Overall Weight: 5.15 lbs
  • Operation: Direct Impingement
  • Finish: Hard Coat Anodized Black
  • Upper Receiver: AR15 6061 Billet Aluminum
  • Controls: AR15 Forged 7075 Standard Charging Handle
  • Bolt Carrier Group: M16/5.56 Nickel Boron Coated (NiB-X), 9310 Bolt and 8620 Carrier, Machined Billet Extractor, 8640 Hard Chrome Plated Firing Pin
  • Muzzle Device: 1/2-28 2-Port Brake, Stainless Steel
  • Gas Block: .750 Low Profile, Set Screw Style, Stainless Steel 
  • Barrel: 7.5" 416R Stainless Steel, 1:7 Twist, Pistol Length Gas System, Government Profile
  • Handguard: 7" M-LOK® 6061 T6 Extruded Aluminum
  • Lower Receiver: SALTWATER ARMS 7075-T6 Forged
  • Trigger: Nickel Boron Coated
  • 30-round Magazine Included
  • Enlarged Trigger Guard and Beveled Magazine Well
  • 100% American Made

 This is a restricted item and the firearm must ship to a Federally licensed gun dealer. The firearm will ship with a copy of our FFL for your dealer records. You will have an opportunity to upload a copy of your dealer's FFL at checkout. If you do not have a copy, simply have your dealer email a copy to Your order will not ship until we have a copy of the receiving dealer's FFL on file.