The Carlson's Choke Tubes 80145 Bone Collector 20 Gauge Turkey Extended/Ported in 17-4 stainless steel delivers a purpose-built solution for turkey hunters seeking proven patterning and extended choke performance with their Browning Invector-Plus platform. Constructed in a durable matte black finish, this turkey constriction tube uses 17-4 stainless steel corrosion resistance and reliability for demanding field use, with a constriction diameter of .575 inches to deliver dense patterns at distance without sacrificing pellet energy. The extended, ported design helps reduce recoil and muzzle rise, promoting steadier follow-up shots in fast-changing turkey scenarios, while the Invector-Plus compatibility ensures a secure, precise fit on compatible models. One choke is included to provide immediate access to a proven turkey-specific pattern, making it a practical upgrade for waterfowlers who also chase birds, or for dedicated turkey hunters who value consistency across outings. With its Bone Collector lineage, this choke blends trusted performance with rugged field durability, enabling tighter, more uniform patterns that help you achieve ethical, humane harvests from a respectful distance.