FWIW I spoke with Rock Ridge direct this morning, I too was confused about who builds what etc. They said they built the rifles AIM was selling along with Creedmore. They FORMERLY built rifles for Gibbs... RR bought out Gibbs, apparently some time in 2012 or early 2013, and they are no longer made. Gibbs M1903A4 may still be for sale, but none have been built to their specifications for some time. I purchased a Rock Ridge M1903A4 this morning.... they are now doing their own thing, building rifles under their own name using mostly GI parts, Boyds stocks, Criterion barrels and without the fake stampings, cartouches etc. some manufactures added to the rifles. They are still using the Hy-Lux G4 scope and report it's now pretty much trouble free. They said their new production rifles will have their full name on the barrel... underneath, as well as the RR stamp on the top front. Regarding the scope, I asked about the USMC title on it.... the person I spoke to laughed and said that was a mistake from the manufacturer. Was intended to be on a USMC version of the Unertl.