UPDATE: My co-worker brought his new Gen 4 G26 in to work today, and after field stripping the gun, I measured the RSA hole on the muzzle end of the slide. The measurement was just like mine, .450. I was pleased. There appears to be no issue regarding the measurement being larger than on my Gen 3's. The inside measurement was the same as the others.
Last edited by Redstate; 05-16-2012 at 20:01..