Just got a lower build kit today for a spikes that I've had in the closet for a while. Love the built-in trigger guard, and the logo, etc. Seems as well machined and built as any other out there. got it all together, and sloppy fit with all my uppers. Not to the point where it would affect accuracy, but still, even budget lowers fit with no play. The lower is now completed and covered in CLP so tough to return. Wish I had gotten another stag or anderson but went for a cool logo. lesson learned. A quick google search revealed that this is a common problem. bummed.