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This 5.56 chambered 20 inch Modern series barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ corrosion resistant finish and QPQ coated M4 feed ramp extension.

Series/Collection: Modern Series

Size: 223 Remington/5.56x45mm NATO

Barrel Length: 20"

Twist Rate: 1:7"

Thread Size: 1/2-28

Material: 4150 Chrome Molybdenum Vanadium Steel

Finish: QPQ

For Use With: AR-15 Style Rifle

Weight: 35 oz

Gas System Length: Rifle

Profile: Government

Gas Block Journal: 3/4"