BudsGunShop.com - Mag capacity

Yes, you can run any standard AR style magazines in this rifle.

YES! 👍

Antonio, yes Sir. Most manufacturers including Sig make firearm packages that have lower capacity magazines so their firearms can also be sold in states that have magazine capacity restrictions. The firearms are exactly the same but just have lower capacity mags included. The firearms will also accept any standard capacity magazines just fine.

YES, you can use normal 30 round mag in this. The 5rd mag that is shipped with the gun is detachable. I hope this helps!