To really caveat off everything being shared;
It's not that the AP M5 is not a great gun, you just hear more about issues and problems because inexperienced builders are having issues thinking they now how to build. Then they come to forums like this, seeking knowledge and wisdom to fix said issues. It can be very easy to misunderstand the issue and blame Aero from the outside looking in, which isn't the case it seems.
SIG offers a bare bones gun that comes assembled and for what you get equivalent from Aero, is a great deal from SIG. Now how you view SIG quality and workmanship is a whole different argument that we can get into more in depth in a non tech forum.
Bottom line, both platforms are great choices and alternatives! Aero offers a builder and extreme value because you can quality build your AR at ala carte prices providing substantial savings if you know what your doing.
The SIG offers you amazing value at entry level prices from a highly regarded and well respected firearms manufacturer. It is the best value offered from any of the big houses for an out of the box big boy that works lol.
At a certain point we are simply nitpicking and it's unnecessary at this point. Since the SIG came out in 2019 many have argued against it but overall it is simply a solid gun at a solid price. It's not as easily customizable or fun has some of the others in the field but changes can be made. It is accurate and reliable out of the box, and at a good price. Enough have been fielded to gauge or witness problems or issues and they don't exist.
My curiosity is now aimed at what SIG will do next with the platform.... It's at the point in its age where SIG will drop, or further refine and who knows.
