The Winchester Invector-Plus 12 Gauge Full Flush Choke Tube is expertly designed to deliver precise and consistent shot patterns for optimal performance. Its innovative longer choke taper ensures uniform density and reduces fliers making it a reliable choice for serious shooters. Crafted from durable 17-4 stainless steel with a sleek black finish this flush choke tube is built to last. Specifically approved for lead shot it is ideal for distances of 40+ yards providing the perfect constriction for long-range accuracy. The Invector-Plus system also prevents gas leakage that could damage the barrel or choke ensuring a seamless shooting experience every time.