Yep, that's the part. Also, the corresponding projection on the action release is worn. They're both worn enough that the bolt-carrier is pushed to one side when the forend is pulled. (It all works fine when unlocked, though, as I demonstrated in the film.
)
As for age, it's a 1982 gun. Round count? No idea...
Of course, using it for PSG means that it gets a fair bit of hard use - when I first had it, I attended a safety course and, after a 40-plate stage, thirty years of accumulated brown gunk liquified and ran out from under the rear sight.
As for the springs, I had a *lot* of trouble with FTEx but Ithaca finally relented and allowed me to buy parts direct from them. I bought a whole load of non-pressure-bearing parts including extractors and springs. I also bought a new left-hand shell-stop spring.
After fitting the parts, it no longer has extraction failures.
Regards,
Mark.
P.S. Sorry for the thread hi-jack, Clevinger.