MOS Direct Mount RED DOT - Zulisy S6-GM
This video demonstrates a durability test for the Zulisy S6-GM red dot sight mounted on a Glock 21 Gen 5. The test involves confirming zero, then physically impacting the optic on a car hood before re-testing zero. The results show the optic maintained its zero throughout the abuse, highlighting its robust construction and value. The instructor emphasizes the direct-mount advantage for Glock MOS systems.













