Select the correct choke for your Beretta shotgun:
Beretta has manufactured barrels with several different thread/choke styles over the years. Some guidelines to help you determine which type of choke tubes are right for your gun are as follows:
Mobil Choke System- Barrels that use the Mobil Choke will typically be marked only with the gauge marking. Mobil Choke tubes (if you have your factory tubes) will be marked PB or ST followed by the degree of the choke.
Optima Choke System- Barrels that use the Optima Choke will typically be marked OB immediately adjacent to the gauge marking. Optima Choke Tubes will be marked Optima-Choke.
Optima Plus Choke System- Barrels that use the Optima Plus Choke will typically be marked 12 gauge 3 1/2" with no other identifying code mark in the immediate area of the gauge marking. Optima Plus Choke tubes will be marked Optima-Choke Plus.
Optima HP (High Performance) Choke System: Barrels that use the Optima HP Choke tubes will be marked OB HP immediately adjacent to the gauge marking. Optima HP Chokes will be marked Optima-Choke-HP.
Please note that Muller Chokes is NOT responsible to know what choke type your barrel takes. It is important, if you have purchased a used gun, for you to know whether or not any after-market adjustments have been made to your gun. If you have questions, an experienced gunsmith can advise you.