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Rainier Arms, LLC

Rainier Arms UltraMatch .308 Rifle DPMS .875 Gas Block Barrel - 18

Rainier Arms UltraMatch .308 Rifle DPMS .875 Gas Block Barrel - 18

Availability: In stock




The Rainier Match Chamber is a modified .308 WIN-7.62 NATO chamber to produce ultimate reliability and accuracy shooting both the 7.62 NATO & .308 WIN rounds.


  • Stainless Steel Match Grade Shilen Blank
  • Length: 18"
  • Twist: 1:10
  • Gas Block Seat: .875 Diameter
  • Thread Pitch: 3/4X24
  • Weight: 3 lbs 2.8 oz
  • .308 Rainier Match Chamber
  • Rifle Gas System
  • 4 Groove
  • M4 Feed Ramps
  • Proprietary Contour
  • Bead Blasted Finish

Barrel Care

For your convenience we have published barrel care recommendations for this product. The instructions are in Adobe Acrobat's Portable Document Format (PDF). You will need Adobe Acrobat Reader version 5.0 or higher to view and print the instructions.

If you do not have Adobe's Acrobat Reader, you can download a free copy at

Additional Info

Additional Info

SKU RAB-U-308-R18-.875-SS
Manufacturer Rainier Arms, LLC
Finish Stainless Steel
Barrel Length 18"
Profile No
Gas Length Rifle
Caliber .308


Customer Reviews (1)

great barrel Review by Savannah
The barrel is great, the quality is excellent the only issue I had with this barrel is the tread pitch is an oddball size. This barrel and rainier match bcg shoots a little over .5 moa at 100 (Posted on 8/18/2015)

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