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The Building of an XM25 and it Parts

This is a discussion on The Building of an XM25 and it Parts within the The M14 forums, part of the M14 M1A Forum category; I'm far from an expert on the AN/PVS-4 scopes, but I can tell you this: The AN/PVS-4 is a second generation scope. There are third ...


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Old January 2nd, 2016, 07:45 PM   #121
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I'm far from an expert on the AN/PVS-4 scopes, but I can tell you this:

The AN/PVS-4 is a second generation scope. There are third generation tubes available, but when installed in a second generation scope body they don't focus properly, the third gen tubes have slightly different dimensions.

The AN/PVS-4A scope body has the housings for AA batteries cast into the scope body. This housing is machined a bit differently internally and is designed for the third gen tube. So, if you go PVS-4 make sure it's a second gen tube, if you want third gen make sure it's a PVS-4A body.


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Old January 3rd, 2016, 07:08 AM   #122
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Quote:
Originally Posted by 2336USMC View Post
I'm far from an expert on the AN/PVS-4 scopes, but I can tell you this:

The AN/PVS-4 is a second generation scope. There are third generation tubes available, but when installed in a second generation scope body they don't focus properly, the third gen tubes have slightly different dimensions.

The AN/PVS-4A scope body has the housings for AA batteries cast into the scope body. This housing is machined a bit differently internally and is designed for the third gen tube. So, if you go PVS-4 make sure it's a second gen tube, if you want third gen make sure it's a PVS-4A body.

The AN/PVS-4 second gen Night Vision scope is what I'm after. I see them all the time on fleabay but from sellers who don't back what they sell. Can these be found at gun shows or on line by folks who back their products?

I also would like to know what price range can I expect to pay and who if anyone works on these NV scopes?

Again thanks in advance.

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Old January 3rd, 2016, 10:26 AM   #123
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removed.


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Old January 3rd, 2016, 10:53 AM   #124
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Thanks Shaun, these are hard to find on the net. No one seems to have a BPTco nv adapter.

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Old January 3rd, 2016, 11:01 AM   #125
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Your welcome. I regret not buying it, but I had many irons in the fire at the time and funds were slim. In hindsight, I should have sold something so I could have gotten it. That BPT mount and adapter you won on Gunbroker looked nice. Looks like a few others wanted it real bad too, judging by the bidding. Congrats on that nice set.

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Old January 3rd, 2016, 11:08 AM   #126
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There are a lot of small shops that sell and repair NV equipment. My scope was built by Ed Wilcox at Wilcox Engineering. It started as a PD trade-in PVS-4, he built it up into a PVS-4A with a new housing and Gen 3 tube. He even provided a letter at my request to document that it was a legit PD trade-in. His prices are reasonable, and he can provide a warranty.

Give him a call and see what he has available, as a small shop he won't always have everything in stock but you might get lucky.

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Old January 3rd, 2016, 11:20 AM   #127
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Quote:
Originally Posted by hytekrednek View Post
Your welcome. I regret not buying it, but I had many irons in the fire at the time and funds were slim. In hindsight, I should have sold something so I could have gotten it. That BPT mount and adapter you won on Gunbroker looked nice. Looks like a few others wanted it real bad too, judging by the bidding. Congrats on that nice set.
Shaun,

When I first saw the adapter on gunbroker I didn't know what it was. I searched the forums and found not one picture. The guy who sold it had it mounted on the mount backwards which didn't help much either.

Anyway I did find a poor picture of one and figured it out. Yes the bidding went way higher than I thought it would but money I have and BPTco. AN/PVS-4 I didn't have.

Still don't have it, should get it Wednesday of this week.

Yes you should have bought it, apparently they are quite rare.

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Old January 3rd, 2016, 11:24 AM   #128
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Quote:
Originally Posted by 2336USMC View Post
There are a lot of small shops that sell and repair NV equipment. My scope was built by Ed Wilcox at Wilcox Engineering. It started as a PD trade-in PVS-4, he built it up into a PVS-4A with a new housing and Gen 3 tube. He even provided a letter at my request to document that it was a legit PD trade-in. His prices are reasonable, and he can provide a warranty.

Give him a call and see what he has available, as a small shop he won't always have everything in stock but you might get lucky.
Thanks for the useful info, I will get in touch with him.

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Old January 11th, 2016, 12:34 PM   #129
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Well it looks like my XM25 will have night vision as I have acquired a new AN/PVS-4 gen3 night vision scope.

And to support that scope will be a serialized BPTco. mount and BPTco. night vision scope adapter.

Here are some pictures, I know most haven't seen the adapter because I tried and found not one picture of the BPTco. adapter.

I wonder if someone here could tell me what the significance of the serial number and the "S" on the brookfield mount, the other two I have don't have these features. Any help is appreciated.









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Old January 11th, 2016, 01:44 PM   #130
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Old January 11th, 2016, 02:16 PM   #131
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Maybe it went to that serial number scope; S = for starlight.

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Old January 11th, 2016, 02:18 PM   #132
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I think the S denotes it as a standard BPT scope mount. I have a lightweight BPT mount and it has a L stamped there.

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Old January 11th, 2016, 04:27 PM   #133
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Why the serial number? I have two others that are not serialized.

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Old January 11th, 2016, 04:41 PM   #134
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Quote:
Originally Posted by XM25Ren View Post
Why the serial number? I have two others that are not serialized.

XM25

I am not sure. I can only guess that it was verified for fit, or fitted to a particular rifle. There are several scope mounts on the market that are numbered to their particular rifle, like the Israeli NIMROD mount and scope. Given the level of detail that went into the XM25, M25 rifles, my guess is it is serialized to the rifle. That makes it odd to me, because it looks unused completely. Maybe refinished? Does the finish match your other BPT mounts?
One possibility is it could have been done on the commercial market by a custom builder at the request of the owner.
It is a nice pair of parts for sure. The odd serial markings just make it that much more interesting.

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Old January 11th, 2016, 04:54 PM   #135
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Shaun, they all match perfectly in color. I know for sure one in my collection is brand spankin new and the colors are spot on. I looked closely under loop for ware and other marks that might indicate use, nothing found.

I do have a theory though. BPT made mounts for the commercial market and the military, the serialized mounts were intended for the military while the others without serial numbers were meant for the civilian market. Just a theory, could be full of hot air.

The guy I got these from didn't know much about them other than the fact that they were made by Brookfield.

XM25Ren

The BPT stamp is right next to the serial number. I think the serial number was put there by Brookfield. This mount was intended for the military.

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