"It is also the only accurate way I know of to shoot a pistol with NVGs (it's like cheating)."
Sorry for the late response. I am currently in Iraq, so I check email a lot less.
I have been a SOF Operator for 12 years now. I have been using the Jpoint on my rifle scopes (my first was the ACOG TA-11) since 2000.
I have had a Jpoint milled down into the slide of my Glock-30 (modified) & Glock-19 since 2003. I have used them all in the most difficult conditions, weather, & terrain that I've ever seen (including Afghanistan, Iraq, ocean swimming & jungle ops). I have been deployed in combat most of that time. I can confidently say that the Jpoint on my Glock-30 was the primary contributor to lives/limbs saved when an insurgent sprung from under a bed w/an AK-47 on full-auto. I've fallen down 5-6 mountains, crashed in 2 helicopters, and smashed my weapons against countless doors & vehicles; yet I've only broken 1 Jpoint. My rifle fell from a table at the indoor range and landed on the concrete floor right on the top of the ACOG, smashing my Jpoint (this was before the protective wings).
It is also the only accurate way I know of to shoot a pistol with NVGs (it's like cheating).