Now that you've got the awesome Mossberg 715T at such a mind blowing value (probably under $300) you need to get some 25 round magazines for your new baby.
These are the factory Mossberg 715T 25 round magazines that fit perfect with your 715T.
They're made from super strong polymer which is built to last. They have a ridged spot for your thumb so it makes loading all 25 rounds much easier.
The Mossberg 715T magazine also has a viewport window from round 16-25 so you have a rough idea just by glancing how many rounds you have left to shoot or finish loading.
Most buyers grab a couple at a time to save on shipping.