Barrels are marked Optima for optima choke, Optima HP for Optima HP, Never seen a optima + . So that one I don't know But it should be.Do Beretta barrels indicate which series of Optima chokes?
I know the treads are the same. This is a bad thing IMO. Gave up telling a guy at my club. He is running optima chokes in an Optima HP barrel. So far no apparent damage.I do know one thing, some of them, with a little effort, will interchange with disastrous consequences.
Could you not just ask the person that you purchased the gun from? They kept the chokes for a reason. They must expect to use them. Or is something else going on?I recently purchased a second-hand AL391 Urika, supposedly built in 2005. Unfortunately, it did not come with any chokes so I need to buy them.
It may be aftermarket choke threading. It is possible that the barrel was cut and re-threaded. You can try fitting an Optima+ in it, but if you can find a place where you can try different chokes, it might be Invector Plus or something else.I bought it from a local gun shop. So they would have to reach out to the previous owner. It has to be Optima Plus....thanks everyone for their input!
So do I. I have two AL391 Urika2s, one sporting and one field , both 28 inch barrels have “OB” stamped on them. The sporting version use Optima chokes. The field version with the narrow rib uses Optima+. Based on your photo and my experience, your barrel is a field version that requires Optima+.I vote Optima Plus.