I have one chambered in .223 with a 16.5" barrel.
I've been meaning to do a full review, but I've not had sufficient range time to give it a proper shake out.
So far I've had it out 3 times and have around 200 rounds down the pipe.
While the build quality appears pretty good overall, I've had some teething issues with the bolt guide shearing off, failures to feed, failures to extract and light primer strikes.
I have reached out to BCL and they have been great with warranty and some parts replacement (extractor and the bolt guide).
AR mags can vary in dimensional tolerances so this can be a factor in the hit and miss feed and functionality of the rifle. I'm really hoping that BCL follows through with the proprietary mags for these things.
I've used around half a dozen factory loadings from 55 gr FMJ to 77 gr OTM and around 8 previously made, well proven hand loads.
I haven't found a factory load that it likes, and the only hand load it likes was the 75 gr. SMK hand loads it printed 10 rounds into 1.5" at 100 yards (photo below).
The accuracy has gone from respectable (below group) to downright brutal, and not at all consistent, even with the same ammo from group to group.
Having scoped the bore, it is definitely a budget barrel. Given the choice, I would have gladly paid whatever extra needed to cover the cost of a truly match-quality barrel right from the off.
BCL sent me specs on the barrel thread which I have sent off to IBI to inquire on a replacement, but a couple of emails and several weeks have passed with no reply from them.
IMG_5689 by
M J, on Flickr
IMG_5702 by
M J, on Flickr