I have a Socom that was built around 2006... one of the earlier ones. The XS front sight broke at the clamp, and the nice people at Springfield sent me a new one under warranty. I installed the new sight... and now the rifle shoots something like 18" high at 50yds. The only thing I can think of is there is a different (newer) version of the XS FS assembly that is shorter, or it's intended for a different model (Scout, etc...) I discarded the broken sight already... so I can't compare height between the two. I have an email into SAI, but I thought I would axe here to see if anyone is immediately aware of any differences.