The award-winning Goblin Thunder Choke Tube is the original extended ported shotgun choke, designed for exceptional performance. When paired with the right combination of shell, pellet and choke constriction, Goblin Thunder reliably delivers a consistent 14 inches-16 inches pattern at 40 yd. Precision-machined to high tolerance standards on advanced computer-controlled equipment, Goblin Thunder chokes are made from 17-4 PH grade stainless steel, ensuring they represent the best quality shotgun chokes available today. Featuring a unique conical/parallel internal design along with exclusive outward angled diagonal ports, these chokes enhance pattern density by up to 20%. The extended ported section further allows for faster follow-up shots and improved accuracy by significantly reducing recoil and muzzle jump. Elevate your shotgun's capabilities with the Goblin Thunder Choke Tube for unmatched reliability and performance in the field.