DoubleStar uses high quality American made parts to ensure performance in your AR15. Why Choose DoubleStar Parts instead of the Other Guys; DoubleStar uses only the best parts to make their lower parts. Lesser Parts use metal injected molded or improper steel to cut costs. The lesser part will wear at an extremely high rate and need replacing sooner. DoubleStar parts are made to last for the lifetime of the weapon.
Their 20" 6.5 Grendel Bull Barrel starts with their 6.5 chambered stripped bull barrel made from 416 SS utilizing the rifle length gas system.This match barrel has the barrel extension installed, pinned, and gas port drilled. All parts are completely made in the USA..

Specifications and Features:
Material: 416 Stanless Steel
Barrel Type: Bull Barrel
Caliber: 6.5 Grendel
Barrel Length: 20"
Gas Block needed .936
Twist Rate: 1:9 Right Hand
Barrel Option: Standard
Gas System Length: Rifle
Muzzle Device: N/A
Made in the USA