[Azathoth]

Please take what I have to say with a grain of salt.

You probably want to have a helmet/skullcrusher headmount for your NVG. You may find it quite useful to navigate or read a map with your nods. Bringing your gun up to your face in order to navigate / read is certainly going to be a PITA.

Also, when you navigate without NV to your hide or assault area etc you are going to miss out on a giant pile of environmental information, such as the lights of enemies.

Their are mounts for the PVS14, such as the TNVC aimpoint adapter, Larue LT133, that would allow you to quickly go from helmet to rifle mount. Their are some options like the USGI issue adaptor for flat top rifles

I own the LT133, and I used to run it mounted to my PVS14 while it was on my helmet, and I used it to move my NODS to my rifle when I got to an ambush position as having the NOD on the rifle while sitting and waiting in ambush is useful, it lets you aim without the use of a laser system that gives away your position.

You will need to pair your optic with your NV. Your Scope so i'm assuming bolt gun??? should be designed to be paired with a set of NV, some scopes are designed to have the NV put in front and others behind, know the difference. If you have a NV in front scope, the magnification from your optic will increase the visibility of imperfections in your image such as pixels, and "noise" from the NV unit.

Speaking about optics. Budget live fire optics not going to work. I owned a Vortex VIPER with the NV settings and the NV settings are too damn bright that I wouldn't even mount my PVS14 behind the scope. Basically you are going to have to go with a proven Military grade optic that costs real money. The cheapest rifle optic being the Aimpoint PRO (IMHO). The last thing you want is to have a reticle burned into the the display of your NODS.


EDIT:
you could buy a dedicated NV device that is intended and designed to be paired with a Scope like a PVS 22 or a dedicated NV scope