I like their lowers, and the upper is nice, but the parts kit has disappointed. The pins in the kit aren't to spec, and I got to shoot the trigger today. Wow. Longest pull and furthest reset I've ever experienced. Oh, the trigger worked, but I kept thinking the trigger group was not functioning, until it did.

I don't know where they get this stuff, I assume they don't mfg it in house, but I won't do it again. Once bitten, and all that.