Here goes nothing! Want to build my 1st upper (for varminting). I know there is large number of folks who trade on the parts I need locally (West of Portland). I want to know who you like and why. It can all be the same guy(s) or different for each bullet below. I don’t care. • Misc upper parts (delta ring, gas tube, charge handle, picatiny gas block, etc.)? • DPMS lo-rider upper (or similar) • Hogue float hand guards, or similar, or maybe a railed..., barrel nut, etc. • 20” 1/8 twist .223 Wylde chambered bull barrels (fluted or not) • And carrier groups (since not all bolts may head space readily) Can you recommend a good, flexible upper vise block? Do any of you have anything to say about these two? http://www.brownells.com/.aspx/sid=52635/pid=0/sku/Upper_Receiver_Vise_Block http://www.midwayusa.com/viewProduct/?productnumber=760543 Hey! I could order all parts online, or just get it over with and buy a complete RRA upper. But can't pass on the opportunity to enjoy a new challenge, and meeting new, fun people and talk guns f2f.