You cannot use a magnifier with a scope of any kind...
Not even a 1x prism scope... Nothing with an etched reticle will work with a magnifier.
You can't use a magnifier in front of any optic either... And while the TA44 has longer eye relief than other ACOG models, it still needs to be very close to the rear of the receiver... I have mine butted against my MBUS Pro, which is a small compact rear sight, and it works, but isn't ideal for my typical cheek weld. I had to collapse the stock a notch from my typical spot, to make my natural hold fit properly to the eye relief of the optic.
Another thing... Making a single rifle try to fit into several roles is generally a bad idea.
It just never really works out well. It becomes a compromise in every role, and you will wish the rifle was set up specifically for the current role you are using it in.
You can set up a rifle for HD use, and still use it for general plinking on the range, but you can't set up a rifle for mid range work, and expect it to be great at HD too.
For hunting, you have to think about what you are hunting and the typical ranges you would be hunting at, and set up accordingly.
If you want a low power variable... The Primary Arms 1-6x gen III is light weight for the type, at 16oz...
My suggestion is pick a role for your rifle and stick with the best optic for that use.