This ain't gonna be too detailed. I just want to say I love it. It makes a great handstop that really lets you grip it, as opposed to plowing your hand into a vertical grip or the weird (to me) grip angle of holding a VFG. Very comfortable to shoot for extended periods (300 rounds in my case). I ended up moving it as far forward on a midlength handguard as I could, this is just what I liked best. YMMV. This gets the 2TA Stamp of Approval,if you were on the fence I say go for it.
Also got Magpul's polymer MBUS rear sight. I'm not a huge fan of plastic but I set it to cowitness my Eotech, then laid it back down. It's really just emergency backup. I'll probably never use it but its good to have handy if the battery goes out.