Comp-N-Choke Non-Ported ARC Series Stainless Choke Tube for 12 Gauge Browning Invector DS.
 
Extended choke with extensively-tested design for improved patterning. Conical/parallel internal configuration.
Two large constriction markings on extended portion for easy identification.

Easy to install and remove with your fingers. No special wrench or tool required.
 
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