From what I have seen online Triple K have a mixed reputation for the quality of their magazines.

I purchased two spare mags from them for my Astra Constable on .32 auto. Neither mag would lock into the grip. On the first shot the mag would drop slightly and not feed the next round. The issue was the mag cutout was slightly out of place. It was a bit too low and not engaging the release internally. A few minutes work with a needle file fixed the issue.

Given the rarity of these mags (I waited the full 120 day backorder period for them to be made) this is probably not such a big issue. How their 3913 mags work out is anyones guess but...... if you can't get them anywhere else it is worth a try.

Just be prepared to fiddle around a little to get them to work properly.

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