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18: 1:8 twist light contour AR 15 barrel w/ head-spaced bolt.


These barrels are turned from 416R stainless steel and then lead-lapped, button rifled using state-of-the-art equipment and air-gauged to ensure minimal bore diameter run out for peak accuracy. All JP Supermatch barrels are cryogenically treated for cold bore shot predictability, minimum thermal drift, outstanding accuracy and extended barrel life.  JP Supermatch barrels come with an individually head-spaced JP EnhancedBolt™ assembly, threaded 1/2 x 28 at the muzzle,  and are a stainless finish.

  • Barrel Contour:  .650 under hand guard/.750 at the gas block/.740 diameter in front of the gas block.


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