10-16-2019, 12:01 AM
I have an Aero upper/Lowe set, their M4e1. Best bang for the buck on a budget..or otherwise for that matter. I also have an Sons of Liberty Gunworks matched upper/lower set....and it?s just perfect in my eyes. Fantastic workmanship and no need for the adjust screw the Aero has...it fits tight...will hold together without the pins and only comes apart with a bit of wrist work.

