So oddly I find I have a few guns that would benefit from bigger 320 style mags. I see that ETS makes them, but my HK experience with them was not good. Does anyone have some thoughts?

I've had very good success with ETS mags for the Glocks, and I was happy to see ETS come out with P320 magazines.

They're a disaster. As they come from ETS, they don't work. They do not drop free, and they have to be jammed into place to lock, and when they do, they shave a lot of plastic.

I found that after a while, the amount of plastic began to reduce, that was shaved from the mag. I finished off the bevel created by inserting the magazine, with a jewelers file and touched the beveled area up with fine grit abrasive paper. The mag began shaving again.

I contacted ETS, who told me that the mag is made thicker than metal, and will not drop free, will keep shaving, and that's the price to pay for a plastic magazine. By the time ETS told me that, I'd already purchased a bunch of magazines.

Once locked in place, they seemed to feed fine.

I won't be ordering more.

I have 3 of their Glock 17 mags and they work great. Not a single problem.

OTOH, I bought a couple of P320 compact to try them out. Horrible mags! As mentioned above, they did not drop free. Tight fitting and jamomatic. They make excellent malfunction drills for new shooters.

quote:

They're a disaster. As they come from ETS, they don't work. They do not drop free, and they have to be jammed into place to lock, and when they do, they shave a lot of plastic.

Same sort of results with S&W M&Ps. Disappointing after how reasonably well their Glock stuff works. Guess thicker poly walls needed to maintain structural integrity doesn't translate well when trying to replace relatively thin steel bodied magazines.

Big fat NO on ETS,

I tried one out for my 320, mag closed ok, went to pop it in the gun and the base plate broke off the magazine and out goes all the seeds and spring and what a mess.