I have used the RTI system for years. Long before Safariland came around with the QLS system, or at least before I was aware of their system. The RTI system works better in my opinion. Will continue to use this system.
I debated this holster for 3 months. Then finally pulled tge trigger. This habds down is THE best holster I have ever owned PEROID. my glock 20 gen 4, has an optic and surpressor sights. Fits like a glove.
G-Code RTI Hanger
This item attaches to your holster making it compatible with G-Code RTI products, like the MULE.