MRA Match 5R Stainless AR-10 Barrel 308 Win - Maple Ridge Armoury
Maple Ridge Armoury is a boutique Canadian manufacturing company focused on innovative, industry leading design and manufacturing of firearm parts and accessories. Our team is composed of dedicated, passionate professionals who are committed to producing quality products and to providing exceptional service to our customers.
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MRA Match 5R Stainless AR-10 Barrel 308 Win

$479.99$489.99

The Maple Ridge Armoury Match 5R Stainless AR-10 barrel is precision CNC machined in Canada from premium, GBQ 416R stainless steel blanks.   These button rifled blanks are honed, lapped, and stress relieved providing the best foundation to machine and assemble our line of premium barrels.  All MRA Match 5R Stainless AR-10 barrels are backed by our 1 MOA or better accuracy guarantee and lifetime warranty.  More information about the features and benefits of our barrels can be found in the product description tab below.
  • Material: 416R CMV Steel
  • Treatment: Glass Bead Blast
  • M118LR chamber, 308 bore – 1:11.25” twist rate   (Will safely accept 308 Win and 7.62×51 cartridges)
  • 5R rifled, honed and hand lapped
  • 11 degree target crown
  • Precision cut chamber and gas port
  • Barrel Extension: DPMS pattern, M4 feed ramps, Nickel Boron plating
  • Profile:  SPR
  • Fluting Style: Straight
  • Gas Journal: .750″
  • Gas Length: Rifle Length DPMS
  • Muzzle Thread: 5/8″ x 24
  • Barrel Length: 18.6″
  • Weight:
    • SPR fluted: 2lb 8oz
    • Taper Pencil: 1lb 15oz
  • Accuracy Guarantee
  • Lifetime Warranty
  • Made in Canada
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Description
The Maple Ridge Armoury Match 5R Stainless AR-10 barrel is precision CNC machined in Canada from premium, GBQ 416R stainless steel blanks.   These button rifled blanks are honed, lapped, and stress relieved providing the best foundation to machine and assemble our line of premium barrels.  All MRA Match 5R Stainless AR-10 barrels are backed by our 1 MOA or better accuracy guarantee and lifetime warranty.
All MRA Match 5R Stainless AR-10 barrels have precision cut chambers, gas ports, and an 11 – degree target crown .   The M118LR chamber will safely accept both 308 Win and 7.62×51 NATO cartridges and effectively accommodate the ogive of the Sierrra 168 and 175 HPBT cartridges loaded near or at magazine length.  The 1:11.25″ twist rate will effectively stabilize projectiles between 147 and 175 grains achieving optimal performance with the heavier projectiles in the spectrum.   We use an SPR profile to achieve an optimal balance between harmonic resistance , heat resistance, and weight savings.  The unique deep cut fluting presents greater barrel surface area to facilitate improved air cooling while dramatically reducing weight without compromising the overall rigidity of the barrel. We also offer a Tapered Pencil profile to achieve the greatest possible weight savings while maintaining structural integrity.
All Match 5R Stainless AR-10 barrels are made from GBQ 416R Stainless Steel.  This provides superior corrosion resistance while offering the greatest accuracy potential possible.  Instead of adding material to the bore (like Chrome lining) which is often uneven in application, the bore on these barrels is precisely cut as it came from the factory thus maintaining the ultra tight tolerances leading to extreme accuracy.

Specifications

  • Material: 416R CMV Steel
  • Treatment: Glass Bead Blast
  • M118LR chamber, 308 bore – 1:11.25” twist rate   (Will safely accept 308 Win and 7.62×51 cartridges)
  • 5R rifled, honed and hand lapped
  • 11 degree target crown
  • Precision cut chamber and gas port
  • Barrel Extension: DPMS pattern, M4 feed ramps, Nickel Boron plating
  • Profile:  SPR
  • Fluting Style: Straight
  • Gas Journal: .750″
  • Gas Length: Rifle Length DPMS
  • Muzzle Thread: 5/8″ x 24
  • Barrel Length: 18.6″
  • Weight:
    • SPR fluted: 2lb 8oz
    • Taper Pencil: 1lb 15oz
  • Accuracy Guarantee
  • Lifetime Warranty
  • Made in Canada
Additional Information
Weight13 kg
Dimensions10 × 11 × 12 cm
Barrel Length

,

Profile

Taper Pencil, SPR Straight Flute, SPR Spiral Flute

Caliber

308 Winchester

Finish

Bead Blasted Stainless Steel

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