Right To Bear 18" SPR Barrel w/ Ops 12 - 5.56 (Rifle-Length)

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Product Code: RTB55618SM
Stock Status Stock Status: Out of Stock
List Price: $175.00
MSRP: $175.00
Sale Price: Sale Price: $156.25
Savings: $18.75
$156.25
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Right To Bear 18" SPR Barrel w/ Ops 12 - 5.56 (Rifle-Length)


This 5.56 chambered 18 inch Special Purpose Profile Rifle-Length Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension. This barrel features a longer .750" profile dimension necessary for proper installation of the OPS Inc 12th model collar and suppressor.

Quench Polish Quench (QPQ) is a specialized type of nitrocarburizing case hardening that increases corrosion resistance. It is sometimes known by the brand name of Tufftride, Tenifer Black Nitride, or Melonite. QPQ is a huge improvement over Chrome Lined barrels. Unlike chrome lining, where the chrome is built up on the surface, QPQ converts the surface without the risk of dimensional build-up. The technique is used when two or more of the following properties are required in a workpiece:

  • Length - 18"
  • Material - 4150 Chrome Moly Vanadium
  • Profile - SPR
  • Finish - QPQ Corrosion Resistant
  • Gas System Length - Rifle-Length
  • Gas Block Journal - .750" Gas Block Journal
  • Twist Rate - 1/7 Twist
  • Muzzle - 1/2x28 Threaded
  • Weight - 341oz
SKU:
RTB55618SM
UPC:
819747020147