Beretta Optima-Choke® HP tubes stand up to the heat of competition. Manufactured from high strength steel and finished in a nickel-alloy coating, these chokes guarantee significant corrosion resistance and have the ability to withstand the rigors of steel shot. Optima-Choke® HP tubes are fully interchangeable on all Beretta barrels that are threaded for Optima-Choke® HP. No steel shot tighter than MOD.
WARNING: Use of the Optima HP choke tube in an Optima firearm (without the HP designation) can cause severe damage to the choke tube and barrel
when the shotgun is fired. Only use Optima HP choke tubes in these OptimaHP shotguns: SV10 Perennia, SV10 Prevail, A400 Xplor and UGB25 Sporting.