Overpriced, quality control sucks, customer service full of meaningless excuse-like words.
21 out of 43 brand new, out of the shipping box, M4A1's not working at end of 1st day!!! Some won't zero because the barrel is LOOSE.
When you have to retorque everything to spec, bend gas tubes into alignment, buy extra tall front sights(because you run out of adjustment), retrofit extractor devices, and have to rearrange several days training, you too will know that horse isn't a prancer, it's a TAP DANCER!!!