Well , there are some hard to find kits , but they are not so good and all of them are not produced anymore ...
There is one kit from Esci (with raised lines , low detail in cocpit and generally an old kit).
There's the Hobbycraft one , which I think is an Esci's copy but with engraved lines (too deep I'm afraid).
I think there's also one from Revell which again is an Esci's copy or sth ...
According to the Russian aircraft modelling site , (
http://216.110.156.31/russnprd.htm) , the best kit is the Esci's one.
All kits are very old and due to this fact (cold war period provided very little info on Russian aircrafts), all details (especially cocpit) and generally accurasy is not so good.
I think it's about time SOMEONE releases a 1/48 (or even bigger) DETAILED Mig-23 and Mig-27 , and why not a Su-22 too !!!
TRUMPETER ARE YOU LISTENING ???