Quoted:
Id like the pics of H&K mags destroyed as you say..in any event a welded steel body is aparently stronger than polymer.I havent heard any poor reports on durability of the H&K mags please post some proof of this.
If you don't believe me, load up one of your HK mags with 30 rounds and drop it on the feedlips from a height of 5-6ft. You might not even need to load it to deform the feedlips. If I'm right, it'll deform, and you'll be out a magazine. If you're right, it'll be fine, and you'll be out nothing, PLUS you get to prove me wrong. If it survives one drop (which I doubt) then try 2 drops. I'll then post a video of ARC mags surviving half a dozen drops from that height. In sub zero temperatures.
I say this having been in possession of 13 HK mags, I now have 1 that would work if the mag wasn't such a turd. That is, the body is fine. The other 12 have been destroyed in one way or another. It's not hard.
This was with 3000lbs. PMags and ARC mags took 8000lbs. All were unloaded at the time.
As for steel vs polymer, there are issues with the SN test that will hopefully be addressed.