Black Collar Arms 300 BLK 1:5 Twist AR-15 Barrels

$229.95

New and limited! We’ve done a production run of Ultra Match Grade, 7-inch, 1:5 twist 5R rifled, 300 Blackout AR-15 barrels. These are made from 416R stainless steel Criterion blanks and are beautifully salt bath nitrided a deep, jet black. 5/8×24 muzzle threads.

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Description

Specs:

  • AR-15 fit
  • 300 AAC Blackout (300 BLK) chambering
  • 7-inch length
  • 1:5 twist 5R rifling
  • 5/8×24″ muzzle threads
  • 0.740″ shoulder
  • 0.750″ gas block journal diameter
  • 0.104″ gas port diameter
  • uses a pistol length gas tube
  • Dimpled for set screw opposite gas port
  • 416R stainless steel
  • Salt bath nitrided deep jet black
  • Made from ultra-match-grade Criterion blanks
  • Weight: 15.5 ounces

 

Additional information

Weight 18 oz
Dimensions 10 × 3 × 3 in

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