Quick answer: A night vision helmet setup is four parts: a helmet with a front shroud, a G24 pattern mount that clicks into the shroud, a J-arm if your device is a monocular, and a counterweight at the back so your neck is not holding the front up all night. Our analog units already bring the mount (and the J-arm, for the PVS-14) in the box, so most buyers only add the helmet and the weight. Our GEN II FAST SF helmet is a non-ballistic bump helmet built as a night vision mounting platform, at $149.95.
What parts does a night vision helmet setup need?
Front to back, the chain is short. The device clips to an arm or straight to the mount, the mount clicks into the shroud, the shroud is bolted to the helmet, and something at the back of the helmet balances the load. Every link has to fit the next one, which is why the parts below follow common patterns rather than brand specific shapes.
| Part | What it does | Monocular (PVS-14) | Binocular or quad |
|---|---|---|---|
| Helmet with shroud | The base. The shroud is the socket on the front that the mount clicks into. | Needed | Needed |
| G24 pattern mount | Clicks into the shroud, flips up to stow, adjusts height, fore and aft and tilt. | Needed | Needed |
| J-arm | Holds a monocular off to one eye and gives the mount a dovetail to grip. | Needed | Not used |
| Counterweight or rear battery pack | Balances the weight in front so the helmet sits level and your neck relaxes. | Recommended | Strongly recommended |
This post is the shopping list. For the step by step assembly, with the checks that keep everything tight, see our night vision helmet setup guide.
Which helmet do you need for night vision?
Any helmet with a standard front shroud and some way to carry weight at the back. For most civilian night use (walking property, hunting, training, airsoft) that means a bump helmet: a light, non-ballistic shell built to take knocks from branches, door frames and low ceilings in the dark, with a shroud and side rails already fitted.
Our GEN II FAST SF is exactly that, and we say plainly what it is not: it is not ballistic rated and is not a substitute for a ballistic helmet. It has a front shroud for night vision mounting, side rails for lights, counterweights and headsets, adjustable retention and padding, a rear dial for fine fit, and it is compatible with our G24 pattern mount. It costs $149.95.
How do you size a night vision helmet?
Measure around the widest part of your head, about one inch above the eyebrows. On the GEN II FAST SF, S/M fits 55 to 59 cm and L/XL fits 59 to 62 cm. If you measure 59 cm and wear a balaclava or a headset, size up. A helmet that rocks on your head will let the device drift away from your eye however good the mount is, so fit comes before everything else.
Which mount do you need?
A G24 pattern mount. It is the shape most civilian helmets, arms and devices are cut to fit: it drops into a standard shroud and accepts a standard dovetail. Every analog unit we sell ships with one: the PVS-14 and the PVS-31 PRO come with an L4 G24-pattern mount, and the GPNVG-18 quad comes with a helmet mount with a flip lever.
If you want a spare for a second helmet, or a mount for a thermal, we sell the G24 style NVG helmet mount on its own in polymer ($69.95) or aluminum ($99.95). We recommend the aluminum one for a more rigid, wobble free hold. How the mount works, and why the pattern matters, is explained in the L4 G24 mount explained.
Do you need a J-arm?
Only for a monocular. A PVS-14 sits in front of one eye, not in the middle of your face, so it needs a J-arm: a bracket that grips the side of the monocular, offsets it to your left or right eye, and presents the dovetail the mount grips. Every Night Operators PVS-14 kit includes a PVS-14 J-arm with a standard dovetail. Which eye to put it on is covered in which eye to use for a PVS-14.
A binocular or a quad is already centred and carries its own dovetail shoe, so it goes straight into the mount and skips the arm. The PVS-31 PRO does not use a J-arm at all. Neither does a thermal monocular like the PREDATOR when it rides on its own flip to side mount.
How much counterweight do you need?
Enough that the helmet sits level with the device flipped down, and no more. Weight hanging in front of your forehead acts like a lever on your neck. A matching weight at the back cancels the lever, so the helmet stops pulling forward and the retention does not need to be cranked tight. The heavier the front, the more the back needs:
| Device | Weight in front | What comes for the back |
|---|---|---|
| PVS-14 | 265 g or less (unit), plus the J-arm and mount | Nothing; add a small counterweight |
| PVS-31 PRO | 450 g or less without batteries | AA x4 helmet battery pack on a cable, which rides at the back |
| GPNVG-18 quad | 860 g or less without batteries and lens caps | External battery pack (4 x AA) on a coiled cable |
| PREDATOR thermal | 339 g without mounts (pre-production figure) | Nothing; add a small counterweight |
A rear battery pack does double duty: it powers the device and acts as counterweight, which is why binoculars and quads usually run one. For a monocular, a weight pouch or a small battery pouch at the back of the helmet does the job; we sell a helmet battery pouch for that. The maths behind it is in helmet counterweights for night vision and, for two tube rigs, dual tube helmet balance and counterweight math.
What does each goggle show you on the helmet?
The helmet carries the goggle, and the goggle decides how much you see. Here is the same hallway at night through a standard tube, a PRO tube and a GPNVG-18.
These pictures show field of view only. The blue tint is not the tube colour: our tubes are white phosphor and show the night in black and white.
What is the helmet shopping list for each device?
- PVS-14: the kit already has the L4 G24-pattern mount and the J-arm. Add a helmet with a shroud and a small counterweight. PVS-14 kit from $1,784.95.
- PVS-31 PRO: the kit has the L4 G24-pattern mount and the AA x4 helmet battery pack (you supply the AA cells). Add a helmet with a shroud. PVS-31 PRO from $3,799.95.
- GPNVG-18 quad: the box has a helmet mount, the external battery pack and the coiled cable. Add a helmet with a shroud and plan the rear balance carefully, since this is the heaviest device here. GPNVG-18 from $10,999.95.
- PREDATOR thermal: the MOUNT KIT adds the aluminum G24 mount and a flip to side QD mount. Add a helmet and a small counterweight. PREDATOR from $749.95.
Whatever the device, the helmet itself is the one part none of them include. That is the gap the GEN II FAST SF helmet fills.
What goes wrong with a helmet setup?
Four things, most of them about fit rather than parts. A helmet that is too loose lets the whole rig drift. Shroud bolts that work loose move everything downstream. A mount adjustment that slips under movement drops the image off your eye. And a front heavy rig with no counterweight gives you a sore neck in an hour. A thirty second check before you head out (pull on the mount in the shroud, pull on the device in the mount, check the flip up catch) prevents most of it. If you prefer a lighter option than a helmet for short sessions, compare head mount vs helmet mount.
Our pick: start with the device, because ours already brings the mount (and the J-arm on the PVS-14). Then add the GEN II FAST SF helmet at $149.95, sized to your head, and a counterweight matched to what hangs in front. That is a complete night vision helmet setup with nothing left to source.
Common questions about night vision helmet setups
What do I need to mount night vision on a helmet?
A helmet with a front shroud, a G24 pattern mount, a J-arm if your device is a monocular, and ideally a counterweight at the back. Our PVS-14 kit includes the mount and the J-arm, and our PVS-31 PRO includes the mount and a rear battery pack.
Do I need a ballistic helmet for night vision?
No. For civilian night use a non-ballistic bump helmet is the usual choice: it is lighter and is built as a mounting platform. Our GEN II FAST SF is a bump helmet and is not ballistic rated.
What size helmet do I need?
Measure around the widest part of your head about one inch above the eyebrows. On the GEN II FAST SF, S/M fits 55 to 59 cm and L/XL fits 59 to 62 cm. If you measure 59 cm and wear a balaclava or headset, size up.
Does the PVS-14 come with a J-arm and mount?
Yes. Every Night Operators PVS-14 kit includes an L4 G24-pattern helmet mount and a PVS-14 J-arm.
Does the PVS-31 PRO need a J-arm?
No. The PVS-31 PRO is a helmet mounted binocular that goes straight into the included L4 G24-pattern mount. It does not use a J-arm.
Why do I need a counterweight?
Weight in front of your forehead pulls the helmet forward and strains your neck. A weight or battery pack at the back balances it, so the helmet sits level and is comfortable for hours.
Can I buy a spare G24 mount?
Yes. We sell the G24 style NVG helmet mount on its own in polymer at $69.95 or aluminum at $99.95. We recommend the aluminum one.
Will my helmet fit a G24 pattern mount?
If it has a standard front shroud, yes. A helmet with no shroud needs one fitted first, and a few helmets use a different front plate that needs an adapter.
Can I put a thermal on a night vision helmet?
Yes. The PREDATOR thermal monocular is helmet mountable with the aluminum G24 mount and flip to side QD mount in its MOUNT KIT, and its free dual dovetail bridge can hold it beside a PVS-14 pattern unit.
The helmet is the one part no device brings. The GEN II FAST SF is a non-ballistic bump helmet with a front shroud and side rails, built as a night vision mounting platform. GEN II FAST SF helmet, $149.95.