The Daniel Defense 18” 5.56mm NATO S2W barrel is designed with a strength to weight profile (Daniel Defense's Heavy Barrel) and a Mid-length gas system.
The Cold Hammer Forging of barrels is accomplished through intense hydraulic pressure applied at opposing angles by carbide steel hammers. During the hammering process, a mandrel is inserted into the bore while the carbide steel hammers shape the barrel around the mandrel creating the chamber, the lands, and the grooves. In addition to the aforementioned benefits, the Cold Hammer Forging process creates a defect free bore and the most consistent chamber possible.
All cold hammer forged barrels feature a forged chamber and heavy phosphate exterior coating or Salt Bath Nitride Finish. They are all MP tested on-site and are available in multiple configurations which includes barrel only (stripped); barrel with Front Sight Base; barrel with Low Profile Gas Block; and barrel with Front Sight Base, gas tube, and delta Ring assembly (Complete). These barrels will prove themselves to be more accurate and last longer than a barrel that has cut or button rifling.
- Barrel Configuration: Stripped - Caliber: 5.56mm NATO - Barrel Length: 18'' - Manuf. Process: Cold Hammer Forged - Twist Rate: 1:7 - Muzzle Thread: 1/2x28 TPI (Threads Per Inch) - Material: Chrome Moly Vanadium - Outside Finish: Salt Bath Nitride - Inside Finish: Salt Bath Nitride - Gas System: Mid-Length - Diameter At Gas Port: .750'' - Barrel Extension: A4 - Profile: S2W (Strength-to-Weight) - Weight: 2.65 lb - Manufacturer: Daniel Defense Mfg No: 07-116-22172-107 Manufacturer: Daniel Defense
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