Fed five oh, "Take your magazine cap off. Look at the mag spring retainer as it currently sits in the end of the magazine tube (where the cap just came off). Is it black plastic with a slot in it? Do you see ridges on the mag spring retainer? If the answer is yes, then that barrel will be fine."
I just followed what you said, and i think it is a positive match that the barrel I'm looking to buy http://www.midwayusa.com/viewProduct...tNumber=813264
will work accordingly. Again, I unscrew the magazine cap it has mini ridges/serrations, the end of the magazine tube also has a slot and ridges/serrations that get tighten up when tightened with the magazine cap. So it will work? I think so? thanks.