Rocks the world! First time doing anything beyond surface and barrel cleaning. I had never even field stripped this firearm. Caused some minor repairable damage during dissassembly. Watched two different videos and had two different guides to lead me through the upgrade. Biggest problem, the reattachment of the barrel to the lower. Ruger requires you to hop on one foot and pray to the powder gods... or just follow their crazy instructions Can't wait to shoot it, it is not the same firearm.