I'm looking to buy a DD upper and lower, then build a rifle from there. I don't particularly care for the government profile barrels, I'd rather have a barrel that falls between a lightweight and government contour. I would just go with a lightweight, but Illinois could be legalizing suppressors this year, and I'd like something lighter than a standard govt barrel, but stiff enough to not give a large POI change when a suppressor is attached. I've seen the Spike's "optimum profile" barrel, and the BCM enhanced lightweight barrels that claim to fall within that range. Not sure which is better, the Bravo is only 22oz while the Spikes is 26oz (pretty much the same weight as the DD govt counter barrel which is at 27oz). The Spikes also claims to be double chrome lined to M249 specs, also not sure whether that makes a difference. I'm not looking for barrels to necessarily be a tack driver, this rifle is going to be purely a SHTF/HD weapon for close to mid range, so service life is the top concern. Do melonite treated barrels last longer than CL? Which melonited or CL barrels do you guys think would work?