Glock 17 g 4 sights upgrade

They're still in the mail, so I can't say first hand yet. However, there are several videos on youtube including from Dave Spaulding, the co-creator. The paint on the rear is photo-luminescent the same as the paint around the tritium. If it's anything like similar sights I have, brightness will decay based on how much charge it's had.
airbatic said:
Thanks How is the back sight in low light conditions? I see tritium is only on the front post.
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My CAP sights showed up today and I'm quite happy with them. I got them installed, without issues, using a sight pusher of course. They show up well to the eye, and the rear underline really helps you see where your shot breaks / calling your shots and is great for dry practice.

I haven't tested to see how long the luminescent paint on the rear takes to decay, after being exposed to lower, normal indoor lighting. However, it shows clear and lets you align well, it's not nearly as distracting as 3 dot illumination - which I typically blacked out on night sights. These sights, are very nice and at their low cost, amazing.
 
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