The Winchester Invector-Plus 12 Gauge Modified Choke Tube in black is a high-performance accessory designed for precision and durability. Engineered to work seamlessly with back-bored barrels this choke tube delivers consistent and dense shot patterns tailored for various shooting scenarios. Its longer choke taper ensures uniform density with minimal fliers while the innovative design prevents gas leakage that could damage the barrel or tube. Crafted from robust 17-4 stainless steel this flush-style choke is approved for steel lead and non-toxic shot making it versatile for different ammunition types. With a constriction diameter of .020 and optimal performance up to 45 yards this choke tube is perfect for hunters and sport shooters seeking reliability and accuracy. Its sleek black finish adds a touch of sophistication to its rugged functionality.