ARX-100 with Thermold

Co-worker firing a Beretta ARX-100 with his Thermold magazine. Not shown was several failures to feed. I attribute the failures entirely to the magazine.

My impression of this rifle is that it is quite good if you understand that it is not an AR15. For example, while I find the accuracy potential to be less than a decent AR, it is still suitable for a general purpose modern sporting rifle, aftermarket trigger options are minimal, and while heavy, I would not describe it as a bad trigger, and it does not play well with non-STANAG magazines--yes, PMAGS, although popular, are not an industry standard.