"Damn, where'd that roll pin go?!?"
If that sounds like you - losing pins, springs, and little screws and bolts when you disassemble your GLOCK or other guns - then you need a stupid simple solution: The Glock OEM Parts Tray.
It's a tray. It holds parts.
Most of all, it stops you from spending $15 on shipping for a $0.25 spring.
What more could you ask for?
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov