BudsGunShop.com - Ruger mags

yes it will i use it on my SR9

Yes, these work great on all types of pistol mags. I use one on all my 12, 15 and 21 round Sig mags. A must have for loading these high count mags. It really makes it much easier to get those last few rounds loaded. Works great for 1911 mags too. I also have one made for my AR-9mm, 32 rd mags ... I couldn't load them without the Maglula loader. Get one ... you won't regret it.

Rodney, yes Sir. This will load the Ruger Security 9 Magazines no issue. Cheers and stay safe!