I got this: https://www.amazon.com/gp/aw/d/B07QKPWDXT?psc=1&ref=ppx_pop_mob_b_asin_title

The only problem I have is it hangs a little low and, on my 590 7-shot,you can't remove the foregrip with it on, not enough room on the mag tube. Now if I want to completely disassemble, I have to take this off first. Not a big deal, just a little annoying.