The award-winning Goblin Thunder Choke Tube is the original extended ported shotgun choke, designed for optimal performance and accuracy. 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. 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 are among the best in the market 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 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 superior shooting performance.