American Tactical has a set of extension tubes for your Cavalry over and under shotgun. Get that little extra out of your shotgun with these 9" extensions with Mobil Choke Threads so you can pick the chokes you want to use. Simple remove the choke tube installed, screw these in and reinstall the threaded choke of your choice.

Specifications and Features:
American Tactical ATIKOF9BXT
ATI 9" Barrel Extension
12 gauge
Mobil Choke Threads
9" Long
2 Extensions