hello everyone. I just picked up a tm machine complete lower with an A2 stock and 308 buffer. I want to build a 16" barreled rifle with collapsible stock(i have read the buffer/stock/tube post). should i use a complete upper or build my own? midlentgh gas system? Which barrel and bolt/carrier. I want to use an quad rail similar to the lwrc rail i have on my spikes/bcm ar15 with flip up sights and a muzzle brake. I like the look of the larue tac stuff, but... I am on a reasonable budget. <lmao> Any recommendations would be great, thanks
