Hey guys, keep seeing this hand stop (vertical grip?) Popping up a lot over the last month or so.

Anyone have the chance to try one out? It appears to essentially serve the same purpose of the BCM vertical grip once people chop them, but of course looks like it may do a better job of it as it's designed that way.

Sadly they're sold out everywhere, but wanted to hear anyone's thoughts. Thanks!

https://emissarydevelopment.com/product/handbrake/