It works, quality milspec - Aero Precision AR15 Standard Lower Parts Kit

Handy's in my AR spikes tactical lower for 2 years/ 4.5k rounds, no complaints other than the grip which I had to cut the nub off in sand smooth, if you're not on a tight budget I would just buy this kit minus the grip (and minis trigger if you want a drop in).

Everything else works just fine, the takedown pins are snug but were never tight to the point where you needed a tool to get them out like I've seen other lowers/ with other takedown pins.