https://midstatefirearms.com/product/16-223-wylde-18-mid-length-4150-lightweight-pencil-barrel/

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This is a lightweight ‘pencil’ profile ar15 barrel made from 4150 chrome-moly steel. It has a parkerized finish and a mid length gas system. This ultralight barrel will save a few ounces on your Ar15 rifle build. specs:

• 16″ Length
• .223 Wylde Chamber (shoots both 5.56 and .223)
• 1:8 Twist
• 4150 Chrome Moly Steel
• Parkerized finish
• .750 Gas Block Diameter
• 1/2-28 Threads
• Mid-length gas system
• m4 feed ramps
• Weight: approximately 1.5 lbsAs usual, made in USA. 
   
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