I have several FNs, 9,9c,40c my FNs9c's recoil spring came loose from the plunger. I called FN was told to send a picture which I did, I am trying to download here. Following is the response I received. Thank you for contacting FN America. A request was submitted on your behalf to have Recoil Spring Guide Assembly sent to you under warranty. Unfortunately, the part is not covered under warranty. However, it is available at our parts distributor Midwest Gun Works. Attached is the part # and cost. Would Glock, Sig S&W responded similarly. I doubt it. Sorry FN I am through with your firearms. The guns are quality the customer service without question the worse.