Glad that USMCSGT0331 posted some pics of the LaRue and AWP rings used on evaluation PSRs, as noted here....
AWP PSR rings are what you seek. Specifically the old style
....me thinks that item might be tough to find...
That being said, if an operator didn’t like the S&B, and had a NF in the Q at their disposal, they could snag it and use it at will.
Yes, that is my understanding too. For example, in the last decade, if a SOCOM operator wanted to use a NF 3.5-15x50mm daytime scope on a sniper rifle,
the Crane contract allowed for a bunch of variations of the same scope, based on operator or unit preferences. Here's the specific SOCOM permutations of that one particular 3.5-15x scope:
1.
Adjustments: a) 0.25 MOA E/W, b) 0.5 MOA E/W, c) 1.0 MOA Elevation with 0.5 MOA Windage, and d) 0.1 Mil E/W (FWIW, the Navy used turrets "a," whereas Army SF wanted turrets "c" for some platforms, etc. Not sure who used turrets "b" and "d")
2.
Ballistic caps: a) 5.56, b) 7.62, c) M118LR and AB39, d) A191 (300 WinMag), and 3) 50 BMG (ballistic caps requested by the Army)
3.
Reticles: a) Hollow Mil Dot, b) Milliradian Line, and c) Ballistic (I think that last reticle was favored by the Ranger Regiment)
So, a decade ago SOCOM awarded a daytime optic contact to NF for the 3.5-15x NXS scope - but the contract procurement options covered 4 different turrets, 5 different ballistics caps , and 3 different reticles - all based on unit preferences (in this case NSW vs SF Groups vs Ranger Regiment). My understanding is that SOCOM has a lot of flexibility, and can create its own local NSNs, so it can become a very
a la cart menu to choose from, so to speak. Just one example of optic system permutations you can see on SOCOM weapons...
My guess this may apply to the PSR given it was not a standard fielded item per se for general SOCOM use - but rather a small number of rifles apparently procured by a specific organization, and apparently a small number of presumably T&E/SOCOM evaluation rifles were kept for units to "play with." Anyhow, the Opto-Electric contracts that Crane manages for SOCOM provides a lot of flexibility, and it would not surprise me if different vendors of 34mm scope mounts could potentially be used based on operator preferences, as long as the vendor's product was tested and found to meet the technical requirements of some prior (or subsequent) SOCOM contract, or the specific PSR solicitation.
Obviously the use of Test and Evaluation (T&E) sample optics and/or exotic prototype parts such as light-weight titanium mounts, etc, potentially submitted by vendors for SOCOM consideration makes the picture a little more complex too. My 2cts.