The Carlsons CORE Choke for Browning Invector Plus 12 Gauge is specifically crafted for close-range shooting. Made from 174 heat-treated stainless steel through CNC precision machining this choke features an extended parallel section that surpasses conventional factory models. It delivers exceptional dense patterns when used with Bismuth ammunition ensuring bone-crushing performance. Suitable for all lead and HeviShot loads this versatile choke can also handle steel shot up to size 2. With rigorous testing across various loads it consistently provides optimal results for hunters and shooting enthusiasts.