Or message member bandit runner. He designed and built his one front and rear bumpers. I think they're better looking then the Arb personally. He will sell you his plans prints and cad files, and can even design some minor differences into it.
You chose to build an ar at the wrong time buddy... Shoulda done it when parts were available and cheaper.
you might want to re-read the first post. he stated arb as in bumper like the title says, not ar as in the gun platform. its all good we make mistakes im not trying to be a dick just keep the thread on the right track.