WHAT DOES RUGER P89 FOR SALE MEAN?

For sale is a Federal Arms Company of The us 9mm threaded P89 barrel. I purchased this a several years in the past and installed it but I do not Imagine I at any time place just one round as a result of it.I just compensated $300 for just a blue P85 in holster worn ailment and experience it had been a good deal, whilst a Ruger junkie I've a hard ti