My Glock 41 MOS with Vortex Venom Sight. If you're looking for a cheaper high quality sight outside of the Trigicon RMR this is a good choice. The Glock 41 MOS gives you options for various optics.
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https://www.youtube.com/watch?v=jEK_Tj-BD4U
DISCLAIMER: THIS IS A LEGAL FIREARM AND USED AT A SAFE CLOSED RANGE. VIDEO IS FOR ENTERTAINMENT PURPOSES AND NOT TO BE ATTEMPTED.
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https://www.youtube.com/watch?v=_POCePiWPAA