BudsGunShop.com - M400 sig tread

Jermel, yes it will, the Sig Tread takes standard AR-15 magazines. Have a great day!

yes they will work just fine

Jemel, these will work but many owners reported they insert harder and not release clean. The M3 which are updated are recommended over the M2 by Sig : sigsauer.com/pmag-30rd-5-56-nato-gen-m3-magazine-1.html

Yes M400 Tread is just sigs marketing term it is still a mil spec AR15 that takes standard AR Parts and magazines.

Yes, this will fit and function just fine, Magpul pmag magazines are about the best ar15 magazine you can buy. But any ar15 223/5.56 magazine will fit it. Hope this helps.

Yes it will. And just about every other AR pattern rifle on the market too.