The award-winning Goblin Thunder Choke Tube is the original extended ported shotgun choke, expertly designed for optimal performance. With the right combination of shell, pellet and choke constriction, Goblin Thunder consistently delivers a reliable 14 inches to 16 inches pattern at 40 yd. Precision-machined to high tolerance standards using advanced computer-controlled equipment, these chokes are crafted from 17-4 PH grade stainless steel, ensuring they are among the highest quality shotgun chokes available today. The Goblin Thunder features a unique conical/parallel internal design along with exclusive outward angled diagonal ports, enhancing 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. Elevate your shotgun's capabilities with the Goblin Thunder Choke Tube for unparalleled reliability and shooting performance.