The Noveske SPR DDF Barrel in 5.56 NATO, 18 Inches, Stainless Steel (brand part no. 07000562) pairs SPR-length accuracy with Noveske’s Disruptive Deep Fluting for a lighter, faster-cooling barrel. Noveske machines it from 416R stainless steel in an Extra Thicc contour with a 1:7 twist, then cuts the deep fluting pattern to shed weight while a hand-polished, proprietary Noveske Match chamber and extended, hand-polished feed ramps keep accuracy and feeding reliable. It ships with a pinned .936-inch low-profile gas block and a 60-degree muzzle crown. Among rifle barrels, this DDF variant favors precision AR-15 builders who want the SPR’s accuracy in a lighter, distinctively fluted package.

Key Specifications

• The chambering is 5.56 NATO.
• The barrel length is 18 inches.
• The material is 416R stainless steel in an Extra Thicc contour.
• The twist rate is 1:7.
• The barrel features Disruptive Deep Fluting (DDF) to reduce weight.
• The chamber is a hand-polished, proprietary Noveske Match chamber.
• The feed ramps are extended and hand-polished for reliable feeding.
• The gas block is a pinned .936-inch low-profile block.
• The crown is a 60-degree muzzle crown.

Frequently Asked Questions

What does the deep fluting do? Noveske’s Disruptive Deep Fluting removes barrel mass to cut weight and increase surface area for cooling, without sacrificing the Extra Thicc contour’s rigidity.

Is 5.56 NATO safe to fire in a .223-marked upper? This barrel is chambered specifically for 5.56 NATO pressure; pair it with a 5.56 or .223 Wylde chamber upper, not a tight .223 Remington-only chamber.

What gas block size does it use? A pinned .936-inch low-profile gas block, sized for the barrel’s Extra Thicc contour.

Buy the Noveske SPR DDF Barrel, 5.56 NATO, 18-Inch Stainless

SPR-length accuracy in a lighter, deep-fluted stainless barrel is exactly what this Noveske DDF delivers. Order it from our Lubbock, Texas gun shop and it ships fast to your door.