The award-winning Goblin Thunder Choke Tube is the original extended ported shotgun choke, engineered for superior performance. When paired with the right combination of shell, pellet and choke constriction, the Goblin Thunder reliably delivers a precise 14 inches-16 inches pattern at 40 yd. These chokes are precision-machined to high tolerance standards using advanced computer-controlled equipment, ensuring exceptional quality. Crafted from 17-4 PH grade stainless steel, Goblin Thunder chokes represent some of the finest shotgun accessories on the market today. The unique conical/parallel internal design, combined with exclusive outward angled diagonal ports, enhances pattern density by up to 20%. Additionally, the extended ported section allows for faster follow-up shots and improved accuracy by significantly reducing recoil and muzzle jump. Upgrade your shotgun setup with the Goblin Thunder Choke Tube for unparalleled reliability and performance in the field.