Built two of them. One, the GM barrel needed light tapping with a 2x4 chunk to seat the receiver. The other one with a Ruger T barrel hand fit easily. Both show about a 10% increase in accuracy though over the previous host receivers so far. Is it a Kidd? No, but it's retarded to make the comparison for a $89 receiver to a $300 receiver, everyone wants something for nothing......
To me, it's a no brainer for $89. I mean really, one of the biggest problems in a Ruger receiver is their shitty scope base attachment. I have seen MANY that were stripped out over the years- this solves that problem. Plus you get a rear cleaning hole. You can sell your old receiver for $50-$60 and be in this for less than $30 and never have to worry about a screw stripping out etc....worth it just for that alone to me.