rdb brass catcher

I saw a thread down a ways in this forum where people were waiting on a brass catcher to come out. I just made my first one by modifying an $8 AR15 brass catcher purchased from Amazon here: https://www.amazon.com/gp/product/B078SPZXWH/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 First cut...