Optima-Bore® Barrel (on request), with lengthened forcing cone that considerably improves shot
pattern distribution and felt recoil reduction.
Optimachoke® Plus Tubes.
Supplied with the Optima-Bore® barrels, they minimize shot deformation and enhance the concentration and distribution of shot patterns. The Optimachoke® Plus tubes are engineered to resist steel shot stress and corrosion.
This is from the Beretta Website
pattern distribution and felt recoil reduction.
Optimachoke® Plus Tubes.
Supplied with the Optima-Bore® barrels, they minimize shot deformation and enhance the concentration and distribution of shot patterns. The Optimachoke® Plus tubes are engineered to resist steel shot stress and corrosion.
This is from the Beretta Website
