Nope. The M-4 is a durable and capable weapon. Not my favorite by any stretch but it does the job. The issue with it is that the tolerances are tight and not as forgiving as the AK so it fowled quite often and required constant cleaning. IMHO the M14 should have stayed as the infantry weapon of choice. After that, the FN SCAR.
Trained with the M-14 in Basic. Beautiful weapon. I wish I had it now.