Posted: 11/21/2005 1:31:06 PM EDT
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Had a few customers inquiring about using a NVD behind an ACOG.... As you can see with the new MUM mount, the ACOG and the MUM have good height alignment. Be VERY aware that the ACOG reticules is going to be very bright in the tube, probably too bright and could burn the image. There is no way to turn down the tritium reticules as we know in the ACOGS. There will be undoubtedly be a focus issue as well with the ACOG. Unfortunately, it's a hard device to use effectively at night .   If anyone has used an ACOG effectively, please post up! Vic |
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I went through a whole host of point of aim / shift issues moving my ACOG from the receiver to moving it forward in order to make room for the PVS 14 behind. I literally had to solve the whole thing by going to an MRP with it's long rail. Now I wanted an MRP and this was just the nudge I needed to make me commit to one. ANYWAY here is a link to the thread in the archives. archive.ar15.com/forums/topic.html?b=3&f=18&t=214059&page=1 Now to combat the flare problem I have tried "dots" of neutral density photographic qel filters cut out with a hole punch and then affixed to a LIF. The LIF was then screwed into the objective of the PVS 14 and even stacked four deep I was still getting flare. Not as bad but still pretty noticeable. With the gain turned way down on the 14 it was all do-able but by no means optimal. For all of the time and trouble I am thinking a 3X magnifier behind an EO tech might be the way to go. IPSC_GUY SIERRA II ALPHA |
Thanks for the info Pete....Ya know the funny part about the whole thing with the NSN and TA31...When I talked with the Triji folks they were suprised at the results...They STILL claim the NSN platform and TA31 WAS built for NV. I had to disagree to say the least and sent them a few pics. They think its STILL usable.  Btw, speaking of the 3x Mil-Spec mag, you see this? www.ar15.com/forums/topic.html?b=2&f=209&t=149007 I was AMAZED at the clarity, I'm SOLD! I'm glad I still learn on a daily basis in this industry! 
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I am not a big EO thingy guy as I like my aimpoint HOWEVER through a NVD the EO Thingy does have less of a shadow and when I get home I am going to try a Doctor optic in front of the 14 with and with out the 3X to see how it does. I love the TA 31 and desperatly want it to work with the 14 but the results just are not that great. IPSC_GUY SIERRA II ALPHA |
Ya think the Doctor would be too bright?..Haven't confirmed, but it seems anytime you see the dot easily with ones eye, they’re sure to be some type of blooming going on with a NOD. Worth a try though. Strange there is not more (public) information on NVD gear scenarios; sometimes I think we're it! Vic |
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I tried it last night with a friend's PVS-14. I was actually pretty surprised that it worked pretty well (but would never be confussed with the performance of one of the dedicated rifle scopes). I had to max out the focus to get a decent view, but I could see a stop sign and make out the details of a car (front window, rear window, etc.) at 185 yards! I could deginately put a round into the stop sign, assuming the POA is not shifted.. It sure beats moving the ACOG so far forward on the rail and you don't get the tritium bloom. When my wife returns with my digital camera, I'll try some photos. |
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Putting the PVS 14 in front of the ACOG gives you kind of a computer screen effect. Not really bad image quality but not great. The bad part of the 14 in front of the ACOG is this. It will cause a point of aim, point of impact shift... It's the tube that does it. There is a BIG LONG explantion of how the Micro Channel plate isn't exactly straight inside the tube causes this effect. IPSC_GUY SIERRA II ALPHA |
My optima gets very dim out doors at night and with a PVS 14 you could turn the gain down a little... I think it might work. Since you have both give it a whirl and let us know if it works. IPSC_GUY SIERRA II ALPHA |
Actually the EO Tech is probably the best setup for NV work. MUCH less body housing obstructions vs. the AP. As for the ACOG, the tritium is still way too bright for NV. Hope this helps. |
Actually the EO Tech is probably the best setup for NV work. MUCH less body housing obstructions vs. the AP. As for the ACOG, the tritium is still way too bright for NV. Hope this helps. |