Complete AR15 Upper Receiver- 300 Blackout, 6.25" Baby Blonde Barrel, 5.5" MLOK

SKU:
MO-452-1010-029
$669.95
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Upper

  • Barrel- 6.25” Baby Blonde Barrel
  • Barrel Material- 416 5R Stainless
  • Chamber 300 BLK
  • Twist Rate 1:7
  • Muzzle Device Milspec A2 birdcage 5/8-24
  • Extension- M4
  • Gas System- Pistol length
  • Gas Block- Low profile .750 Nitride Finish
  • Upper Receiver- Forged 7075 T6 Aluminum, Precision Machined to M16/M4 Spec
  • Handguard- 5.5”, High Quality 6061 T6 Material Mlok with Proprietary Clamping System and Heavy-Duty Barrel Nut

BCG

  • 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 and staked

All KAK complete upper receivers are test fired for feed and function using commercially loaded ammunition

Caliber:
300 Blackout