The winchester invector-plus interchangeable choke tube system works hand-in-hand with back-boring to offer consistent, dense shot patterns with just the constriction needed for the shooting situation.The longer choke taper inside an invector-plus choke tube produces consistent patterns with more uniform densities and fewer fliers.Invector-plus eliminates gases slipping between the choke tube and barrel that could damage the choke tube and the barrel.

Approved: Steel,Lead,Non-Tox
Type: Flush
Gauge: 12 Gauge
Constriction Type: Improved Cylinder
Configuration: Invector Plus
Finish: Black
Constrictiondiameter: .010
Chokes Included: 1
Recommended For: 30 yds
Material: 17-4 Stainless Steel
Ported: No