Great on the range - Carlson's Choke Tubes Beretta Optima HP 12 Gauge Choke Tube

Finely machined. Choke fits perfectly in my A400 Extreme. Make sure you check for tightness - it can take more torque then you expect to tighten it. Otherwise, after so many shots - it seemed to come loose easily, but I guess better that then having them jam up in there and needing a gunsmith to get it out.