I'm considering this AR180B-2 in a trade. I have been reading up on them and they have a weak spot at the front hinge pin area of the lower receiver. In this picture I was sent it almost looks like a crack is developing behind the pin:
Looks like a scratch from removing the E-clip with something sharp like a screw driver. That's not where the crack would form, in my opinion.
That's where I've seen them all. The top or front of the hinge area.Thats what I was thinking, a crack would probably form towards the top or front.




























