The Glock pistol is amazingly reliable and a pleasure to maintain. I own a Glock 22 and Glock 21 and would never consider another handgun for self defense. It’s the best of the best….pleasure to shoot…pleasure to maintain…100% reliable.
**The Glock design allows you to use any oil or lubricant that you like or none. Lubrication is recommended but the Glock will function for a very long time with no lubrication. Even with no lubrication, it would be very hard to wear out a Glock pistol. The Glock is the AK-47 of pistols.
Learn how to lubricate the Glock pistol from a professional gunsmith at Brownells.