The Browning 12 Gauge Modified Invector Choke Tube is a high-performance accessory designed for precision and reliability. Crafted from durable 17-4 stainless steel this choke tube ensures exceptional uniform pattern densities and meets industry-standard constriction specifications. Specifically designed to fit Browning shotguns compatible with standard invector configurations it is not suitable for models marked with invector-plus or invector-ds on the barrel. Approved for use with steel lead and non-toxic ammunition this flush-style choke tube features a constriction diameter of .020 and is optimized for shots up to 45 yards. Its sleek stainless finish adds both durability and style making it a dependable choice for hunters and shooting enthusiasts.