KAK Industry has introduced their latest for the AR pattern with their new 17-556 21 inch upper receiver.

KAK Industry states “KAK Industry is thrilled to present a new 17-5.56 product, featuring our proprietary 17-5.56 chamber and an 21” 416 R Stainless barrel for unparalleled precision. With a 15” M-LOK handguard and Enhanced your choice of BCG, this upper delivers reliable extraction and blazing fast velocities.”

KEY SPECIFICATIONS:

  • Barrel Length-21”
  • Barrel Material- 416 R Stainless, Blasted Matte Grey
  • Chamber 17-556 KAK
  • Twist Rate 1:9
  • Muzzle Device- KAK SAW Flash Hider
  • Extension- M4
  • Gas System- Magnum Length
  • Gas Block- Low profile .750 phosphate Finish
  • Upper Receiver- Forged 7075 T6 Aluminum, Precision Machined to M16/M4 Spec
  • Handguard- 15” Mlok, High Quality 6061 T6 Material Mlok with Proprietary Clamping System and Heavy-Duty Barrel Nut
  • M16 Auto Profile Carrier Machined from Aircraft/ Bearing Quality 8620 Steel, Properly Heat Treated, Ground to Perfection
  • Bolt is machined from a single piece aircraft/bearing quality 9310 steel, heat treated properly, precision ground, Shot Peened and MPI’d
  • Firing pin is machined to the mil-spec print from 8740, precision ground, and chrome plated
  • One Piece Billet Fully Machined Enhanced Extractor, Phosphate coated for Increased reliability and corrosion resistance
  • S7 tool steel ejector and extractor retaining pin
  • 4130 Gas Key, precision staked using our hydraulic staking machine
  • KAK Carrier Key Screws- T25 drive, Grade 8, Properly Heat Treated

To learn more about KAK Industry. CLICK HERE

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