Indoor range backstop

I have found that using a block wall behind my target works pretty well.  The club in the next town over uses 8 foot by 6 foot rubber laminated hanging mats behind the 3d targets out at the old golf course. I have never seen anything like that before, but they would work dandy for anyones back yard or basement targets.

[Hummer3T]

swather belting, nothing with go through, arrows, 40 cal, etc...