Edwin, no AR specified Sir. There is a very good chance that is will function just fine. Steel Cases do not expand/seal as well as brass and you may get blowby that will dirty your AR up quicker and will just need to be cleaned more frequently. I have no issues with Tul Ammo in my AR's. That said, I can usually find brass cased ammo for nearly the same price.

Edwin, You should have no problem. It is inexpensive enough if you want to try it buy a couple hundred rounds It should work just fine.

Hi Edwin,
The only time I have ever had problems with Tul Ammo steel cases in an AR is when said AR was used with a Bump Stock (which are now illegal and has since then been turned in) but when we used them in the normal AR platform, they worked fine.

most will however it comes down to the individual gun and not a brand or model we could have the exact same gun and one may function just fine with the Tul ammo and the other may not