They don't make a metal control arm version of the one you have. If you want to go metal, which is what I have , order this one , http://www.readyheli.com/HS1200_Meta...w_p/hs1200.htm. I bought a MicroHeli complete metal tail assembby for my 450 and it didn't work very well. A lot of others said the same thing. Their tail pitch slider my work fine but I prefer to stick with Align parts. The MicroHeli part is also twice the price and I can pretty much guarantee it isn't worth it. Alan