I just purchased a BCA 20" Parkarized Heavy Chrome Moly barreled complete upper for 249.00. I was going to purchase just a barrel and bolt, but I didn't see any on Brownells that were cheaper than the complete upper. I have only put 20 rounds down the barrel right now, I have a Sitemark Digital Night vision scope on it and after sighting it in, I am currently getting three shot groups that a quarter can cover. The only negative I have is the handguard is clamp on instead of screw on, it has a slight wobble to it, if you run iron sights, you will have problems holding zero. I will keep it as is, but if my accuracy is sporadic, I will change to a screw on handguard, the clamp on one touches the gas block when on a bench.