458 SOCOM AR-15

[spyder]

Huh... Well, I stepped in here a little too late... I just got done building a buddy a 458 upper. You can also use standard 30 round mags from your AR, you may have to modify them, but you can. In my endeavors, if you shoot the pointy bullets (<I'm so articulate), then most AR mags will work. I know that Pmags, and standard GI mags will with them anyway. If you use the flat nose shorty's, you want to put a slight rounded bevel in on the front of the mag. It is also nice to have the correct followers installed, although normal AR followers also work without a problem. Just my $.02. P.S. I have a nice new reamer, and gauges to build more........ he..... hehe.. heheheheheheheheh.....................