I believe the GL-506 is the MOS lower 1/3 co-witness height, and the GL-429 is intended for direct mill mounts. That said, I think the GL-429 will serve on a MOS gun, but will be a little lower than the traditional 1/3 co-witness.
"When the phone rang, Parker was in the garage, killing a man."
I’ve only borrowed red dot pistols and never owned one. I have a little experience with an RMR, Holosun (don’t remember the model but it was recent, a DPP, and most recently an SRO. The SRO is silly easy to use. Glass is really clear and the dot is easy to find in the window. I’ve used it on a cloudy day and as of today a really bright and sunny day. I love the 5 MOA dot.
For me personally if I was buying it would be an SRO. It’s the first dot for me that has me really thinking about making the jump. It felt like cheating.
“If you know the way broadly you will see it in everything." - Miyamoto Musashi
http://youtu.be/UzjgOq60vFE
This bothers me on the SRO. As statistically unlikely as it may be to drop your pistol... they still get dropped. (Sage Dynamics SRO Test)
I’m sure it rocks in competition.
I appreciate Aarons testing and his data points but to apply that same testing to CCW use is absurd. If the dot breaks and shatters use your irons, use an index, intuitive shot, etc. A fall that would damage an SRO is going to damage your iron sights too, or one could argue that.
I would carry an SRO IF the footprint doesnt bother you without hesitation. I would carry an SRO on duty as well and will when/if we move to red dots.
It's unfortunate the outsize influence "torture tests" and drop tests have had given their anecdotal nature.
I watched "Sully" last night. Despite that individual outcome, probably still not a good idea to attempt a water landing with a passenger plane.