Been a firearm collector since 1988 and if I wasn't wouldn't have bought one to replace my Gen 4. Although Glock made some changes it doesn't shoot any differently than my Gen 4. When you usually see a yellow label on a Glock hard case it usually means rebuilt, Purple label Contract overrun guns, Green label U.S. manufactured for export. Red label High Capacity, Blue label Is Law Enforcement or first responder or security. Also if you are a GSSF member you quality once a year and get a blue label coupon. You save around $50-$100 I believe?