Just as title says, I am looking to sell the buffer tube and castle nut that was removed from my MR 762. I switched to a G28 style tube for clone building purposes, but for those building a 417 from the brownells kit, this is your chance for an authentic HK buffer tube and nut. Looking to move relatively quick so I am open to serious offers. Only thing worth trading for are steel 416 mags. Please email me for picture requests. I prefer to use services like Apple Pay, Venmo, or PayPal. Thanks.