MRA X1 Match Nitride .308 Win Barrel
The MRA X1 Match Nitride .308 Win Barrel is precision CNC machined in Canada from premium, GBQ 4140 CMV 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 X1 Match Nitride barrels are backed by our accuracy guarantee and lifetime warranty.
All MRA X1 Match Nitride barrels have precision cut chambers, gas ports, and an 11 – degree target crown . The 1:10″ twist rate will effectively stabilize a wide range of 308 Win and 7.62x51mm cartridges with the greatest performance from 168gr to 175gr projectiles. 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.
All MRA Nitride barrels undergo Nitride case hardening heat treatment. This heat treatment provides superior corrosion, wear, and abrasion resistance. Instead of adding material to the bore (like Chrome lining), Nitride treats the existing steel by imbuing nitrogen into the surface of the steel both inside and out. In this way, the Nitride process offers excellent accuracy potential.
.308 Win Barrel Specifications
- Material: 4140 CMV Steel
- Treatment: Nitride
- M118LR chamber, 308 bore – 1:11.25” twist rate (Will safely accept 308 Win and 7.62×51 cartridges)
- Conventional 6 groove button rifling
- 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″
- Accuracy Guarantee
- Lifetime Warranty
- Made in Canada