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Rainier Arms 5.56 NATO Barrel - 6.75" Satin (Contract Overrun)


In stock

Rainier Arms 5.56 NATO Barrel - 6.75" Satin (Contract Overrun)

Special Price $114.92 Regular Price $215.00

Occasionally we have orders for custom guns that leave us with spare parts at the end of the process. In those situations, we often have products in non-standard configurations that, while functional, aren't going to be carried in the future. This is the case with our Contract Overrun 5.56mm 6” barrels. These are machined out of the highest quality blanks that you expect from Rainier Arms. However, since these were made for a custom project there is no accuracy guarantee on this barrels due to the barrel length, ammunition variance, build components, etc.



  • Stainless Steel Match Grade Blank
  • Length: 6.75”
  • Twist: 1:7
  • Thread Pitch: 1/2x28
  • .750 Gas Block Seat
  • 5.56 NATO Chamber
  • Pistol Gas System (Gas Tube Not Included)
  • M4 Feed Ramps
  • Proprietary Contour
  • Beat Blasted Finish
  • Weight: 14.9 oz


Our Craftsmanship Guarantee

Rainier barrels are meticulously designed and machined by precision gunsmiths. Our barrels are turned the same way true artisans have made premium rifle barrels for over a century. Each barrel has 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
Product Type Barrel
Manufacturer Rainier Arms, LLC
Gas Block Diameter .750"
Thread Pitch 1/2x28
Twist Rate 1:7
Color Satin
Gas Length Pistol
Finish Bead Blast
Barrel Length 6.75"
Caliber 5.56 NATO

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