AR 57 review

Finally got my AR57 upper receiver and I like it, it's really light, very accurate the 50 rd ps90 magazine works flawlesly, I install a holographic reflex sight, which make it really easy to follow a target while shooting at it, cleaning it's a little easier than the AR15, for the upper, the lower it's the same and don't forget to swap the buffer because takes a heavier one for the AR57.

here it's a video on how to take it apart