Standard Invector is Browning's original flush fit system. It offers top performance, exceptional patterns and superior durability. They are small, but the constrictions and design produce extremely effective patterns. 

Features:

• Produce excellent patterns with uniform densities
• All Browning Standard Invector choke tubes are set to industry constriction standards
• Flush fit tubes do not extend beyond the end of the barrel
• Constructed of highly polished, 17-4 stainless steel for the ultimate in performance and durability

• Standard Invector choke tubes fit only Browning shotguns designed for Standard Invector and are NOT for use in shotguns showing Invector-Plus or Invector-DS on the barrel(s).
• Picture shows a Skeet, this item is Improved Cylinder.

Specifications: