Serious turkey hunters, listen up! The Patternmaster Code Black Turkey choke tube is designed specifically for you and your Browning Invector DS shotgun. This .665 constriction 12 gauge tube combines traditional constriction technology with Patternmaster's patented wad-stripping system that literally strips the wad from the shot column as it exits the barrel. The result? Incredibly tight patterns with shortened shot strings - we're talking up to 75% shorter than other choke tubes - which means more pellets hitting your target at longer distances. The effective range extends up to 70 yards, giving you that extra reach when turkeys hang up just out of range. Built from titanium-infused 17-4ph stainless steel, this thing is built to last through seasons of hard use. The SecureFit threading ensures a tight fit with zero pressure loss, while the non-reflective bronze titanium coating helps with concealment in the field. The unique canoe porting reduces recoil and muzzle jump too, so you can get back on target faster for follow-up shots if needed. Just remember - this is NOT for use with steel shot or slugs, and they recommend ammunition velocities below 1550fps for best results. If you're looking to maximize your turkey hunting effectiveness with technology that actually works, the Code Black Turkey choke deserves a spot in your hunting gear lineup.