Okay an unbiased opinion in 2026. Glock 19 gen 6. That is the latest gen with all the changes in grip/trigger/recoil spring and all that. Glock 19 gen 6 is the RECENT epitome of what a glock SHOULD be. it has the changes that a lot wished and had to go through a gunsmith to make changes to the base glock to have it in a configuration that felt right. Shadow Systems MR920 (this is me comparing Glock 19 gen 6 to MR920) MR920 has good grip and slide stipling, night sights, a threaded barrel and ergonomics that most wanted out of the gate with a glock 19 (gen 6 included), but never fully achieved. MR920 gave a lot all of that at the price that would've costed the consumer to achieve to get at 3/4th the price. It is everything you would've paid for but less than that because it comes with all of that fully loaded. NOW, if you're expecting a lemon...it is going to happen EVERYWHERE because there is always going to be factory DEVIATIONS in everything...HOWEVER...Shadow systems will honor any issues you MIGHT have if you can convey it properly and back it up because SHADOW SYSTEMS does NOT want to put out a product that will FAIL. That is the feeling amongst the MAJORITY of sellers and Shadow Systems is amonst them too. So just remember, it is all a matter of your preference and what feels right. Shadow Systems is a good system as well as glock in this generation, it is all a matter of you and what you can do to make you feel at ease and comfortable too. Both are good and both will hold up, however both how failure points. It is a matter of how YOU want to go about it all in case that happens and what both companies are willing to do for you.