So several years ago when I was young and dumb I bought a used semi-custom savage 110L in a pawn shop. It had been rebarreled to 257AI and came with a fancy stock, reloading dies, brass and was a steal. I've enjoyed it over the years and the other day it hit me: This savage has no barrel nut! How have I missed this over the years. The barrel appears to be threaded directly into the receiver like a remington or one of the shaw mkvii rifles.

The only marks are "257AI" on the top and "5 28 69 ES" on the bottom (may 28, 1996 ER Shaw?) Is there any way to figure out what happened to the gun or where? (I have no paperwork from the shop and it went under anyway) Could I, if I so desired, still buy a savage barrel, nut, and thread a new barrel onto the receiver? (understanding that the stock would either need to be inlet for the nut or a new stock acquired)

a couple of pictures are posted here:

http://i.imgur.com/VXkk0.jpg

http://i.imgur.com/7OU1Z.jpg