Sionics Weapon Systems 5.56 Mid-Length Chrome Line AR-15 Barrel - 16"

Manufactured by Sionics Weapon Systems
SKU: S-B-16-CL
MPN: S-B-16-CL
Manufactured by Sionics Weapon Systems
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Standard orders will ship out in 1 business day (M-F) if ordered by 3:30 pm CST. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination. NFA items will take longer to ship and are dependent upon ATF processing times.

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Whether you're starting a new AR build or need to upgrade your barrel, the Sionics Weapon Systems 16" 5.56 Mid-Length AR-15 Barrel is a perfect choice. These 16" barrels are made of 41V50 CMV steel with a chrome-lined interior and manganese phosphate coating for extreme durability. They feature a medium contour, 1:8 twist rate, .750" gas seat diameter, and a mid-length gas system for a smoother gas curve. The barrel is great for smooth, reliable shooting and comes pre-dimpled for easy gas block installation. Like any other Sionics barrels, this one goes through a detailed QC process, is magnetic particle inspected, and has hand-polished feed ramps.

  • Chambered in 5.56 NATO
  • 16" barrel length, medium profile
  • Threaded 1/2x28
  • 41V50 CMV steel construction, Manganese phosphate coating
  • Chrome lined
  • .750" gas seat diameter
  • 1:8 twist rate
  • Mid-length gas system
  • Magnetic particle inspected
  • Hand-polished feed ramps
  • Dimpled for easy gas block installation
  • Weight: 1.13 lbs
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Barrel CoatingManganese Phosphate
Barrel ContourMedium
Barrel Length16
Barrel LiningChrome
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandSionics Weapon Systems
Caliber Gauge5.56 NATO
Gas Seat Diameter.750
Gas System LengthMid-Length
Thread Pattern1/2 X 28
Twist Rate1:8
Weight1.13 lbs
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

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