Quote Originally Posted by Duffy View Post
The forward or rearward bias is very modest, only 0.1 longer than the centered. When we added 0.1 to the biased side, we also removed 0.05 on the other side.
How wide is the upper paddle on the centered version? I ask because some billet / heavy upper receivers are thick enough that they have (and need) a cut-out for the bolt catch. Wondering whether yours will fit….