Never heard of that myself.
I'd be asking myself if that is the case why are the Glocks in 40S&W the most popular law enforcement handgun in North America.
Glock 20's with their heavy slides are/were designed for the 10mm they were not just light guns that were converted.
My G20 can handle anything that I can give it I have never had a failure to feed or fire unlike my other 10mm handguns Colt Delta Elite - Glock 29 - Kimber stainless Target 11.
I'd be asking myself if that is the case why are the Glocks in 40S&W the most popular law enforcement handgun in North America.
Glock 20's with their heavy slides are/were designed for the 10mm they were not just light guns that were converted.
My G20 can handle anything that I can give it I have never had a failure to feed or fire unlike my other 10mm handguns Colt Delta Elite - Glock 29 - Kimber stainless Target 11.




















































