I suppose all of my builds should have "on a budget" in the title, oh well. I've wanted to build one of these for quite some time. I have had the receivers built for a good while and couldn't decide on a barrel. Finally settled on the Green Mountain 18" rifle gas, 223 wylde chamber, 1 in 8 twist stainless bead blasted. I feel like it will give me all the accuracy I can handle and it was a great deal as well. I'll be trying some 69gr ammo next weekend and walk it out to 300 yards and depending on how that goes I may try some 77gr. I really like the magpul fixed stock so far, it really balances out this gun well. I also have to admit that this gun has the first NiB BCG in it that I've owned, and I really, really like it. I can see it being darn easy to clean. The scope is the Bushnell 4.5-18 that a lot of us on here got on sale back on Black Friday. I don't have any allusion that this gun (nor me for that matter) will shoot a 6" group at 1,000 yards, but as I said I believe it will do all I want it to at around 300 yards.