They are up to par on quality, fit, and finish as my preban IMI Galil ARM. The addition of the top rail is nice and the factory added a polymer recoil buffer. You can easily swap out the arm brace for an original Galil stock. If you do your NFA sbr paperwork. The ACE stock knuckles are different but the pivot pin is the same, it’s pretty simple to do. The armbrace or stock seems a bit low due to the increased height of the receiver with the top rail. I replaced the factory side folder brace with a dissident arms end cap and m4 buffer tube and sba3 brace. If you do decide to NFA sbr it, the brace will slide off and you can put on any m4 type stock. The end cap raised the buffer tube height closer to the top rail. The Galil ACE is not an AR, IT IS HEAVY, comparatively, and it is built like a tank. However, if the world is ending IT WILL WORK.