I am he. I plan on making these out of 7075. If an order big enough for anodizing goes through then they are $73 a pc and that includes S&H. The lug will be 4140 pre hardened steel. The knob will also be the same material. I plan on working closely with AEnemaBay to get the rail fit and everything just right. Basically these have a much slimmer profile then the knobbed charging handle. On these the knob is folded down and when you need to charge then you move it up ( for those not familiar with the FAL para) The only thing with me is that you need to be patient. I don't have a CNC and everything takes me a while to make. Is there anyone on here with an XCR close to 32738 zip code? If you need forard assist then that will not happen with this handle, I will be working on something else for that.