Durable with excellent patterning, the Invector-Plus interchangable choke tube system has been a mainstay of Browning shotgun performance for over 20 years. ... They are found on many 12 and 20 gauge Browning shotguns.

What is the difference between Invector and Invector Plus choke tubes?

Invector Plus features a longer design for improved pattern performance. Considered a significant breakthrough in choke tube design. Standard Invector Choke Tubes. The original Browning removable choke tube system.

What choke is best?

Types of Choke Tubes

The tighter the constriction of the tube, the farther the range. For example, a full choke is most effective at 40 to 50 yards; an improved cylinder is most effective from 20 to 35 yards.