Ultimate 338 Arc Barrel 7″ and 11″

GQ Armory Ultimate 338 Arc Barrel

Looking for the best possible 338 Arc barrel for your next build? Look no further. This is the same barrel that comes as standard in our flagship Paladin series. What makes this barrel so special? For one, we start with a premium 416R barrel blank. We cut the bore and chamber to match-grade specifications with both 1:3 and 1:5 twist 5R Button rifling as it must adhere to our accuracy standard of sub-MOA at 100 yards. The profile has weight taken out of all non-critical areas to make it as light as possible without sacrificing accuracy. This allows us to achieve the ultra-light 12 oz (7″) and 17 oz (11″) weights. In order to feed 338 Arc reliably, the barrel is mated to a premium barrel extension with oversized, wide mouth feed ramps. Featuring a 25′ SIG/Q taper and reinforced muzzle threads, securely mounting your favorite muzzle device or silencer is a breeze. The whole assembly is then mirror polished before it gets black nitrided, which not only provides a beautiful stealth finish, but it makes the surface extremely scratch resistant and a breeze to clean. You will not find another 338 Arc barrel on the market with this much thought and finishing work, not to mention as lightweight and accurate as our Ultimate 338 Arc barrel.

FEATURES & SPECS:

• – 7″ AND 11″ ULTRA MATCH-GRADE 338 ARC BARREL
• – 1:3 OR 1:5 TWIST
• – 5R BUTTON RIFLING
• – 5/8X24 MUZZLE THREADS
• – PISTOL LENGTH GAS PORT
• – .750″ GAS JOURNAL
• – 25′ SIG/Q TAPER
• – 12 oz 7″ / 17 oz 11″
• – PREMIUM 416R STAINLESS BARREL BLANK
• – WIDE-MOUTH FEED RAMP BARREL EXTENSION
• – SUB-MOA ACCURACY @ 100 YARDS
• – POLISHED AND BLACK NITRIDED
• – MIL-SPEC AR-15 COMPATIBLE
• – WARRANTY: LIFETIME. IF YOU CAN BREAK IT, WE WILL FIX IT!

OPTIONS *PLEASE READ*

• – Barrel Twist rate: 1:5 standard, 1:3 is optional. 1:3 produces better ballistic performance on the heavier Hornady 307gr and other subsonics, however it does spin apart the Hornady 175gr Supersonic loads. This is something to consider if you do plan on running supersonics. The projectile construction will matter. If you are unsure of which route to go, give us a call.
• – Our barrel features a 25′ tapered shoulder. For use with a 90′ muzzle device or silencer, a tapered shoulder adapter must be used (see options above)