The award-winning Goblin Thunder Choke Tube is the original extended ported shotgun choke, engineered for exceptional performance. When paired with the right combination of shell, pellet and choke constriction, the Goblin Thunder consistently delivers a reliable 14 inches-16 inches pattern at 40 yd. Precision-machined from 17-4 PH grade stainless steel to high tolerance standards using advanced computer-controlled equipment, Goblin Thunder chokes are among the finest available on the market today. Featuring a unique conical/parallel internal design and exclusive outward angled diagonal ports, these chokes enhance pattern density by up to 20%. The extended ported section also facilitates faster follow-up shots and improves accuracy by significantly reducing recoil and muzzle jump. Upgrade your shotgun setup with the Goblin Thunder Choke Tube for unmatched reliability and shooting performance.