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tomrkba · November 24, 2019, 12:17 AM

1) My experience

a) Glock 17 with rear sight replaced with some red dot I don't recall. Impossible to use. Finding the dot required perfect wrist-arm-eye alignment.

b) Glock 19 Gen 4 MOS with a Trijicon RMR mounted between suppressor height Trijicon night sights. Dot placed on the top edge of the front sight. Acquisition was reliable, unlike in "a". Speed to first shot was slightly reduced, but followup shots were really fast under recoil.

The RMR suffered from reliability problems. It would fade out periodically under recoil. It still did it after returning from Trijicon. It now lives on an AR-15.

2) Karl Rehn's Red Dot Study

http://blog.krtraining.com/red-dot-study-key-points/

There is quite a bit to digest there, but key points:

1) All participants shot better with iron sights. Even advanced shooters suffered a small performance loss.

2) Mount the optic between suppressor height sights. The sights act as an index and backup.

3) "Older eyes" did not actually benefit from the red dot. The opposite was true.

November 24, 2019, 12:17 AM	#2
tomrkba Senior Member Join Date: November 29, 2011 Posts: 751	1) My experience a) Glock 17 with rear sight replaced with some red dot I don't recall. Impossible to use. Finding the dot required perfect wrist-arm-eye alignment. b) Glock 19 Gen 4 MOS with a Trijicon RMR mounted between suppressor height Trijicon night sights. Dot placed on the top edge of the front sight. Acquisition was reliable, unlike in "a". Speed to first shot was slightly reduced, but followup shots were really fast under recoil. The RMR suffered from reliability problems. It would fade out periodically under recoil. It still did it after returning from Trijicon. It now lives on an AR-15. 2) Karl Rehn's Red Dot Study http://blog.krtraining.com/red-dot-study-key-points/ There is quite a bit to digest there, but key points: 1) All participants shot better with iron sights. Even advanced shooters suffered a small performance loss. 2) Mount the optic between suppressor height sights. The sights act as an index and backup. 3) "Older eyes" did not actually benefit from the red dot. The opposite was true.