I have a Springfield Defender slide and barrel fitted to a Fusion arms frame. The upper half was built by the springfield custom shop in the late 80's or early 90's. I had the slide and barrel assembly and sent it to Fusion to be fitted to a carbon frame with chainlink front strap treatment. I used all the best parts from there. Springfield Defender slide/barrel Fusion Arms Frame with Chainlink front strap Fusion grip safety Fusion safety Ed Brown chainlink mainspring housing Ed Brown pins Ed Brown slide stop Ed Brown allen head grip screws Wilson Combat Hammer Wilson Combat Sear STI Disconnect Wolf springs Greider medium solid trigger Mil-tac black/gray TFB grips I am sure I am forgetting something. I have the receipts from Fusion for the frame and small parts fitting. I have only fired one box of bullets throught it since getting it back. The only thing left to do is the final finish. I was going to do a hard chrome frame and blued slide. I have a little over $1600 in it. I need $1200 out of it or may trade for Glass.