I have three magazines that I want to know if they are military magazines.  Two of them have BRW and S-1 below on them.  The third has OM on it.  All markings are on the back of the magazines.  any help would be welcom.
Bob

BRW  is Borg-Warner , OM is Olin Mathieson (Scott A. Duff's book the M14 owners guide pg.116 ). yes these are USGI mags . I'll give ya $2 each on them!

If the magazines are less than two years in your possession you need to be careful.  There are fake "W", "OM" and "BRW S-1" marked magazines out there.  There are pages and pages of research on this topic on other boards.

Here's a quickie acid test though for magazines marked W, OM and BRW S-1.  Look for ONE and ONE ONLY weld dimple around the square hole on the front side.  This ONE weld dimple needs to be to the right of the square hole as the magazine follower is up and the floor plate is down.  Also, if you can't load twenty rounds into the magazine, the spring is not USGI.  If the follower does not have three EVENLY and NEATLY place weld dimples to attach the follower stop it is a fake USGI follower.

There's more to it but that's the Quick Start Guide to USGI M14 magazine identification.

RHunter sold me some fake ones (2)
He tries to sell them as real and sells them for 25 ea
when I questiones him about the 3 dimples it had he wouldnt respond
I tried 3 times to get an answer

SINCE TRAUMALEVEL1 CLAIMED HE PURCHASED 20 RD. MAGS AND HE IS IN N.J., IT LOOKS LIKE HE BROKE THE LAW.  

Quoted: SINCE TRAUMALEVEL1 CLAIMED HE PURCHASED 20 RD. MAGS AND HE IS IN N.J., IT LOOKS LIKE HE BROKE THE LAW.

If the mags are illegal in NJ and you know that and still shipped them, didn't you also break the law?

Quoted: RHunter sold me some fake ones (2) He tries to sell them as real and sells them for 25 ea when I questiones him about the 3 dimples it had he wouldnt respond I tried 3 times to get an answer

If you have an issue, post your case in the Equipment Exchange Feedback thread to let the moderators and others know.

I DO NOT SHIP COMPLETE 20 RD. MAGS TO NJ.  I HAVE NEVER SOLD MAGS TO THIS PERSON. HE HAS PUT NEGATIVE COMMENTS ON MY LISTINGS AND NO I WILL NOT ANSWER HIM. I HAVE REPORTED HIM, BUT NOTHING HAPPENS.

WHAT'S WITH ALL THE SHOUTING?

Quoted: I DO NOT SHIP COMPLETE 20 RD. MAGS TO NJ.  I HAVE NEVER SOLD MAGS TO THIS PERSON. HE HAS PUT NEGATIVE COMMENTS ON MY LISTINGS AND NO I WILL NOT ANSWER HIM. I HAVE REPORTED HIM, BUT NOTHING HAPPENS.

So, the BRW S1s you sell have one or 3 dimples on them by the front hole?
You sell them as USGI and they have 3 dimples on them.  
I say they are fakes and you never responded to my posts or IMs