AICS mags not feeding properly

[PrecisionLongshot]

Those are 223 mags with the insert. I think

Ah, that would make sense then. So it's more the insert needs to be trimmed.

 

[ZUKA]

It's MDT mags(accurate mag ), I thought they are the same , just like 308 mags.

 

[ZUKA]

Ah, that would make sense then. So it's more the insert needs to be trimmed.

Yes, just a bit.

 

[supernova]

Whats the max OAL on your accurate mags? I had a factory supplied Ruger branded one and a Cadex one. Both were stamped .223 and 3.055". The liners were slightly different, one had longer feed lips. They both fit a 3.055" OAL and had zero feeding issues with longer rounds.

 

[PrecisionLongshot]

It's MDT mags(accurate mag ), I thought they are the same , just like 308 mags.

Those are aftermarket then. They are AI style, but not actual AI magazines. For instance, my 308 mags, which are actual AI mags, have a flat follower. I have no idea if the actual AI 223 mags have a similar shape insert.