(excuse me I a,m not sure of dates and serial numbers here) is if the serial number is over 195,000 as this was the number quoted to me as being the frames of the easy opening variety if its not an easy open frame you will have to send it to T/C to have the conversion done to the tune of $55 IF you want the easy open feature. If you can live with the frame as is them no matter but it is a consideration. By the way at that price its a pretty good deal and a great caliber.
Jim L