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Proof Research AR-15 16" Stainless Steel 6MM ARC Barrel, 1:7.5 Twist, Rifle-Length
Proof Research AR-15 16" Stainless Steel 6MM ARC Barrel, Rifle-Length
 
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MSRP: $629.00
Sale Price: $569.00
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Product Code: PROOF-128664
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Description Learn More
 
We have designed our AR barrels with the goal of improving performance and reliability in the AR platform. Our Caliber Matched Gas System (CAMGAS) results in a gas system that is tuned specifically for the cartridge and length of the barrel.

We make our steel barrels in-house with the exact same commitment to quality and repeatability as employ on our carbon fiber barrels. The drilling, rifling, and lapping process is identical to our composite barrels. We start with the same steel as we use in the carbon fiber barrels. It is a double stress-relieved 416R stainless steel, a pre-hardened chromium stainless steel that was specifically designed by engineers in collaboration with rifle barrel makers to provide the consistent, high quality and durability the firearms industry demands.

Features
  • Excellent machinability for gun drilling and reaming, plus exceptional polishability for uniform lapping
  • A homogeneous microstructure which responds to heat treatment providing a uniform hardness along the length of the barrel
  • An optimum combination of high tensile strength along with requisite toughness to withstand extreme chamber pressures encountered during firing
  • Excellent erosion wear characteristics and corrosion resistance

Specifications:
  • Barrel Material: 416-R
  • Rifling Type: 4 Groove
  • Barrel Caliber: 6MM ARC
  • Barrel Twist: 1:7.5
  • Barrel Length: 16"
  • Barrel Gas System: Rifle
  • Muzzle Thread: 5/8-24 TPI
  • Gas Block Diameter: .750"
  • Barrel Weight: 2 lb - 12 oz


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