The Carlson's Choke Tubes 80180 Bone Collector Invector-DS Turkey Extended/Ported 12 Gauge choke, crafted from 17-4 stainless steel with a matte black finish, delivers reliable, high-performance tightening for turkey hunting, combining extended length and porting to manage recoil and muzzle rise while preserving pattern density at typical turkey ranges. Designed for Invector-DS systems, this choke features a turkey constriction of .665 inches to optimize pellet distribution in both spring and fall setups, helping shooters achieve tighter patterns without sacrificing shot efficiency. The Bone Collector line emphasizes practical field durability, with corrosion-resistant stainless steel construction that stands up to frequent moisture exposure and field use, ensuring consistent performance season after season. This choke ships as a single choke tube, ready to install on compatible shotguns without modification, and its extended ported design helps reduce felt recoil and muzzle blast for improved follow-up shots on fast-moving targets. Whether dialing in your turkey setup or fine-tuning your setup for long-range birds, this Carlsons option provides a dependable balance of pattern density, control, and durability, making it a solid choice for serious turkey hunters seeking reliable, repeatable results.