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Rainier Arms Ultramatch MOD2 .308 .875GB Barrel - 18" Polished



Introducing our MOD2 UltraMatch barrel using the finest blank. Our goal is to mass produce them to bring them to market at the most competitive prices. We wanted the best balance between accuracy while keeping the weight down as much as possible.


  • Stainless Steel Match Grade Blank
  • TiN Extension
  • Length: 18"
  • Twist: 1:10
  • Thread Pitch: 5/8 X 24
  • .875 Gas Block Seat
  • .308 Rainier Match Chamber
  • Rifle Gas System (Gas Tube Not Included)
  • M4 Feed Ramps
  • Proprietary Contour
  • Weight: 2 lb 10.2 oz

Our Craftsmanship
Rainier barrels are meticulously designed and machined by precision gunsmiths.  Our barrels are turned same the way true artisans have made premium rifle barrels for over a century.  Each barrel have hand-cut chambers and crowns with the attention to detail that can only come from highly trained human intervention.  While most companies strive for faster production time to cut cost, we strive for perfection. There are no shortcuts with our barrels, period.

We will go toe to toe with anyone and win.

More Information
SKU RAB-UM2-308-18-R-875-FF-POL
Product Type Barrel
Manufacturer Rainier Arms, LLC
Gas Block Diameter .875"
Thread Pitch 5/8x24
Twist Rate 1:10
Color Polished
Barrel Profile Full-fluted
Barrel Length 18"
Caliber .308 Win
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