It's good but also varies. Unfortunately for me, the right shoulder piece is a tight fit and pretty much stuck which sucks but everything else fits which makes it sturdier which is always great.

It is a solid metal conversion kit. It comes with a good amount of metal pieces that are very nice quality. You can technically make a metal build wing zero for less than 30. The only problem is that you need to be carefull with the joints since its metal and u may need to sand some pieces to make them fit. But overall a very solid kit.