Don't know that you'll find one unless you go back quite a few years. If you are familar with a model 700, you'll know instantly when you see a rifle with a j lock. Its a little round bar thingy opposite the bolt handle. On the end of it, there is a slot that looks like the letter J. The Rem bashers have been really shrieking about it but its really no biggie. You can unlock it and forget it or for a few bucks, you can get a aftermarket replacement shroud.
