Directly from Sig, SIGM400 Upper Receiver Kit - 16 inch, Black, Elite, 5.56 NATO (less BCG and CH), for $249 and FREE shipping. Seems like a deal to me.
https://www.sigsauer.com/store/uppe...in-blk-elite-kit-less-bolt-carrier-group.html
To view all uppers, https://www.sigsauer.com/store/parts/uppers.html
Good info on the specific $249 upper here:
https://www.tactical-life.com/firearms/rifles/sig-sauer-m400-elite-rifle/#sig-sauer-m400-elite-1
https://www.sigsauer.com/store/uppe...in-blk-elite-kit-less-bolt-carrier-group.html
To view all uppers, https://www.sigsauer.com/store/parts/uppers.html
Good info on the specific $249 upper here:
https://www.tactical-life.com/firearms/rifles/sig-sauer-m400-elite-rifle/#sig-sauer-m400-elite-1