Had to get one...got one for 289 holds 16. But only get in 15 is there a trick getting extra round in...awesome gun for the money...my nephew got one can't make it jam eats anything..why o got one

I can load 16 if I use an Uplula.

I use s glock loader

I let it go. That last round is kinda tight anyway, even when I can get it in there. In time, the spring will get broken in and 16 will fit. 15 is generally enough (with another mag of 15 ready).

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S&W Rover

Don't worry about it, its a common thing with the SD9 Mags to be really tight, it will break in over time naturally. I keep 15 in mine. If you put 16 in it forcefully the round will be pushing up into the slide hard and it will feel hard to rack the slide and just won't feel right in my opinion, so 15 seems good to me. There is a you tube video of a guy filing down the bottom of the followers to help out with this issue, but thats up to you if you want to try that just to get that one extra round in there.

Thanks for info...my glock loader seems to work