I personally like the shading that this Glock 17 MOS has.
Glock G17 and G19 Gen4 MOS Are Game Changers — Optic Ready Glocks for Conceal Carry - The Shooter's Log
GLOCK 19 Gen5 MOS Pistol with HOLOSUN SCS Reflex Sight
Holosun SCS Red Dot Pistol Optic
Glock 17 MOS Review Best Go-To Red Dot Glock?
G17+G19= Glock 47 MOS ? Let's Go To The Range & Find Out ~ Gun Review
Can you add a red dot sight on any Glock Gen 5, or does it have to be a MOS model? - Quora
GLOCK 17 GEN 5 MOS Handgun with Primary Arms SLx RS-10 1x23mm Mini Reflex Sight - 3 MOA Dot
TFB Review: Glock 45 MOS Reporting For Duty? -The Firearm Blog
TFB Review: Glock 45 MOS Reporting For Duty? -The Firearm Blog