The mounting of NV & thermal riflescope clip-ons (outer objective diameter chart)

Introduction

The use of night vision and thermal technology for hunting purposes is on the rise. During the day, most of the wild animals remain in the forest, hidden from the human eye. They come out at dawn or at night to graze in the meadows. Under these circumstances, a standard day riflescope is not of much use. A night vision or thermal device, on the other hand, opens a whole new world for the hunter. Such devices have also proved to be useful in preventing the spread of African swine fever – with this deadly disease on the rise, it is of crucial importance to reduce the population of wild boars to a level where the probability of it spreading is greatly reduced.

 

Pulsar F455 digital night vision clip-on mounted on a riflescope

Pulsar F455 digital night vision clip-on mounted on a riflescope

 

The manufacturers produce monoculars, binoculars, riflescopes, and riflescope clip-ons of this type. In certain countries, the use of night vision and thermal riflescopes for hunting purposes is prohibited. The manufacturers thus offer clip-ons, the use of which is not as controversial and legal in many places. Furthermore, the clip-ons are the most universal category as they can often be used as a monocular as well. Before purchasing a night vision or thermal device, check whether it is legal to use it for hunting purposes in your country/hunting ground.

Pulsar F455 digital night vision clip-on mounted on a Swarovski riflescope

Pulsar F455 digital night vision clip-on mounted on a Swarovski riflescope

 

There are several important factors that one must pay attention to before buying an adapter to link night vision or thermal clip-on with a riflescope.

Firstly, the riflescope must not have a parallax adjustment ring on the objective as there is not enough mounting surface for a clip-on adapter on such riflescopes.

 

 

Secondly, the riflescope’s lowest magnification power must not exceed 8x as the field of view is too narrow when the devices are paired. Furthermore, it is impossible to see all the information on the display of the clip-on.

 

 

To mount a clip-on on a riflescope, it is important to know the outer objective diameter of the riflescope, not the diameter of the objective lens. One cannot automatically make out the outer objective diameter based on diameter of the objective lens. For example, if the diameter of the objective lens of a riflescope is 50 mm, the outer objective diameter can be anywhere from 56 to 60 mm. The same goes for riflescopes with an objective lens that measures 56 mm in diameter – the outer objective diameter can be anywhere from 62 to 66 mm, etc. The adapters are designed for both NV and thermal clip-ons made by various manufacturers – make sure the purchase the appropriate one.

 

Outer objective diameter comparison

These riflescopes all have a 56mm objective lens but a different outer objective diameter. Zeiss Conquest V6 2.5-15×56 has an outer objective diameter of 62 mm (left), Athlon Helos 8-34×56 has an objective diameter of 63.5 mm (middle), Vortex Razor HD GEN II 4.5-27×56 has an objective diameter of 65 mm (right).

Our customers still mix up the terms ‘objective lens diameter’ and ‘outer objective diameter’. With this article, we aim to put the confusion to an end. Instead of having to use the measuring tool, the customers simply find their riflescope and the corresponding outer objective diameter in the chart, saving time and avoiding a potential measurement error.

The outer objective diameter of a riflescope measured with a measuring tool

The outer objective diameter of a riflescope measured with a measuring tool

Adapter numbers

Each adapter has a number next to its name. Pulsar is the only adapter manufacturer where the number corresponds to the diameter of the riflescope’s objective lens (Pulsar FN cover ring adapter marked ‘56’ is thus suitable for riflescopes with an outer objective diameter of around 60–65 mm). All other adapter manufacturers provide numbers that correspond to the outer objective diameter of the riflescope (a Smartclip adapter marked with ‘56’, for example, can be paired with riflescopes that have an outer objective diameter of 56 mm).

Rusan Q-R adapter for devices with thread M52x0.75 (fits directly on Dipol, Dedal, and some other NV and thermal devices)

Rusan Q-R adapter for devices with thread M52x0.75 (fits directly on Dedal, Jahnke, and some other NV and thermal devices)

Some values of the outer objective diameters are often referred to as standard because they are used by so many riflescope manufacturers. The most commonly used diameters are:

  • 48 mm,
  • 56 mm
  • 62 mm.
Pulsar FN adapter with included plastic inserts for Pulsar F455 (this adapter is suitable for riflescopes with an objective diameter anywhere from 60 to 65 mm)

Pulsar FN adapter with included plastic inserts for Pulsar F455 (this adapter is suitable for riflescopes with an objective diameter anywhere from 60 to 65 mm)

 

Rusan one-piece adapter for Pulsar F455 (designed for an objective diameter of 56 mm)

Rusan one-piece adapter for Pulsar F455 (designed for an objective diameter of 56 mm)

 

Rusan two-piece adapter for Pulsar F455 (designed for an objective diameter of 56 mm)

Rusan two-piece adapter for Pulsar F455 (adapter for Dedal, Jahnke, etc. + Reduction ring for F455), designed for an objective diameter of 56 mm)

 

Smartclip one-piece adapter for Pulsar F455 (designed for an objective diameter of 56 mm)

Smartclip one-piece adapter for Pulsar F455 (designed for an objective diameter of 56 mm)

 

Smartclip two-piece adapter for Pulsar F455 (designed for an objective diameter of 56 mm)

Smartclip two-piece adapter for Pulsar F455 (Smartclip adapter ‘A’ + PF4 converter for Pulsar Forward), designed for an objective diameter of 56 mm

Riflescopes’ outer objective diameters chart

Below, the riflescope manufacturing companies are arranged alphabetically. Under each brand section, the riflescope series are listed, followed by models with corresponding objective diameters. Please note that not all manufacturers are listed – this is an ongoing project, and as soon as we receive information on models missing from this chart, we will add them.

We encourage you, our readers, to provide us with the outer objective diameters of riflescopes missing from the chart. You can send the value(s) to andraz.gradisnik@optics-trade.com and they will be added. Also, we kindly ask you to notify us if you spot a mistake and contact us in case you have any questions regarding the topic. Thank you in advance.

Company Series Model Outer objective diameter (⌀ -mm)
Athlon Neos 3-9×40 48
4-12×40
6-18×44 51
Talos 3-12×40 48
4-16×40
6-24×50 56
Talos BTR 1-4×24 30
4-14×44 46
Helos BTR 1-4.5×24 30
6-24×50 56
8-34×56 63.5
Argos BTR Gen II 1-8×24 30
6-24×50 56
8-34×56 63.5
10-40×56
Cronus BTR 1-6×24 30
4.5-29×56 66
Ares BTR 2.5-15×50 57
4.5-27×50
Ares ETR 4.5-30×56 63.5
Midas BTR 1-6×24 30
2.5-15×50 58.4
4.5-27×50
Midas TAC 4-16×44 51
6-24×50 57
5-25×56 63.5
Midas HMR 2.5-15×50 58.4
Bering Optics Hunting 1-4×24 30
1.5-6×42 51
2.5-10×50 60
6-24×50
3-12×56 66
Blaser Infinity 1-7×28 36
2.8-20×50 56
4-20×58 65
Burris Veracity 2-10×42 50
3-15×50 58
4-20×50
5-25×50 59
Droptine 3-9×40 48
3-9×50 57
MSR 3-9×40 48
Fullfield 1-4×24 30
2-7×35 41
3-9×40 48
Fullfield II 2-7×35 41
3-9×40 46
XTR II 1-5×24 30
1-8×24 34
2-10×42 50
3-15×50 58
4-20×50
5-25×50
8-40×50
XTR III 3.3-18×50 58
5.5-30×56 63.5
SkullTac 1-4×24 30
RT-6 1-6×24 30
MTAC 1-4×24 30
1.5-6×42 46
Predator Quest 4.5-14×42 52
Delta Optical Classic 3-9×40 48
3-12×42 51
3-12×56 65
Titanium HD 1-6×24 30
4-24×50 58
2.5-10×50 HD
2.5-15×50 HD
2.5-15×56 HD 65
Titanium 1-5.8×24 30
4.5-30×50 58
2.5-10×56 62
Stryker HD 5-50×56 65
4.5-30×56
DD Optics Nachtfalke II 2.5-10×56 65
Nachtfalke III 1-6×24 30
1.5-6×42 50
5-30×50 Hunting 56
2.5-15×50 58
5-30×50 Tactical
2.5-10×56 65
Nachtfalke FX 2.5-15×56 65
V6 5-30×56 FFP 65
Falke Tactical 1-6×24 32
4-16×44 52
8.5-25×50 59
10-40×56 64
Hunt 3-12×56 64
Pro 5-30×56 64
Geco Standard 3-9×40 47
3-9×42 50
4-12×42
Gold 1-6×24 30
1-8×24
2.5-15×50 58
4-12×50 60
2.5-15×56 65
Black 1-8×24 34
GPO Passion 3x 3-9×40 48
3-9×42 50
4-12×42
4-12×50 60
Passion 4x 6-24×50 58
3-12×56 68
Passion 5x 1-5×24 30
Passion 6x 1-6×24 30
2.5-15×50 58
2.5-15×56 65
Passion 8x 1-8×24 30
1-8×24 Tactical 34
Hawke Vantage 1-4×24 30
2-7×32 39
4×32
3-9×40 47
3-9×42 49
3-12×44 51
4-16×44
6-24×44
1.5-6×44
3-9×50 57
4-12×50
2.5-10×50
4-16×50
6-24×50
3-12×56 64
Frontier 1-6×24 30
1-6×24 Tactical
3-15×44 51
4-20×44
5-25×50 57
4-24×50
3-15×50
4-20×50
2.5-15×50 58
5-30×56 64
5-25×56
Endurance 1-4×24 30
1.5-6×44 51
2.5-10×50 57
4-16×50
6-24×50
3-12×56 64
Sidewinder 6.5-20×42 48
8.5-25×42
4-16×50 56
6-24×56 64
8-32×56
8-40×56
10-50×60 68
Hensoldt ZF 3-12×56 62
4-16×56
6-24×56
3.5-26×56
6-24×72 80
IOR Tactical 1-10×26 36
1.5-8×26 35
1x/4×32
1x/6×30
2-12×36 44
6×42 47
10×42 48
16×42
2.5-10×42 49
3-18×42
9-36×44 50
4-28×50 58
3.5-18×50
4-14×50
6-24×50
10×56 64
5.8-40×56 66
9-36×56
12-52×56
16×56
Hunting 1x/6×30 35
1x/4×32
1.5-8×30 37
4×32 38
6×42 48
6-24×50 60
4-16×50
10×56 63
2.5-10×56 66
4-14×56
BDC 1.5-8×26 35
6×30
2-12×36 44
Competition 9-36×44 50
36×42 49
Kahles Helia 1-5x24i 30
2-10x50i 56
3.5-18x50i
2.4-12x56i 62
Helia 3 4-12×44 50
3-10×50 56
K K16i 1-6×24 30
K18i 1-7×24 SFP 34
K312i 3-12×50 57
K318i 3.5-18×50
K624i 6-24×56 62
K1050 10-50×56
K525i 5-25×56
Kaps Classic 1-4×22 30
4×36 40
6×42 48
2-9×42
2.5-10×50 57
8×56 62
Tactical 2.5-10×50 57
10×50
8×56 62
10×56
2.5-10×56
Illuminated 8×56 62
2.5-10×56
TLB 1-4×24 30
1.5-6×42 48
3-12×56 63
Kite Optics K4 1-4×24 30
3-12×50 57
K6 1-6×24 30
1.6-10×42 50
2-12×50 58
2.5-15×56 65
KSP 1-6×24 30
1.6-10×42 50
2-12×50 58
2.5-15×56 62
Leica Magnus 1-6.3x24i 30
1.5-10x42i 50
1.8-12x50i 57
2.4-16x56i 62
Amplus 1-6x24i 30
2.5-15x50i 58
2.5-15x56i 65
Visus 1-4×24 30
2.5-10×42 i 50
3-12×50 i 57
PRS 5-30x56i 65
Fortis 1-6×24 30
2-12×50 57
2.5-15×56 62
Leupold VX-3i 1.5-5×20  25.4
2.5-8×36 41
3.5-10×40 46
4.5-14×40
3.5-10×50 58.4
4.5-14×50
VXI-3i LRP 6.5-20×50 58.4
8.5-25×50
VX-5HD 1-5×24 30
2-10×42 51
3-15×44 53
4-20×52 61
7-35×56
3-15×56 65
VX-6HD 1-6×24 30
2-12×42 51
3-18×44 53
3-18×50 58.4
4-24×52 60
VX-4.5HD 4×24
1-4.5×24 30
VX-R 1.25-4×20  30.5
2-7×33 41
3-9×40 46
4-12×40
3-9×50 58.4
4-12×50
VX-R Patrol 1.25-4×20 30
3-9×40 47
VX-Freedom 1.5-4×20  25.4
2-7×33 40
3-9×40 47
4-12×40
6-18×40
3-9×50 58.4
VX-Freedom AR 1.5-4×20  25.4
3-9×40 47
Mark AR 1.5-4×20  25.4
3-9×40  46
Rifleman 3-9×40
4-12×40
3-9×50 58.4
Competition 45×45 56
FX-3 6×42 48
Mark 4 1.5-5×20  25.4
Mark 5HD 3.6-18×44 53
7-35×56 63.5
5-25×56 65
Mark 6 1-6×20 33
3-18×44 53
Mark 8 1.1-8×24 36
3.5-25×56 69
March X 10-60×56 64
8-80×56
5-50×56
Standard 5-32×52 60
10-60×52
FX 5-42×56 64
5-50×56
Compact 1-4×24 33
1-4.5×24
1-10×24
2.5-25×42 51
2.5-25×52 60
Benchrest 48×52 60
40-60×52
F 1-8×24 33
3-24×42 51
3-24×52 60
Genesis 4-40×52 60
6-60×56 64
Meopta MeoPro Optika6 1-6×24 30
2.5-15×44 51
3-18×50 58
4.5-27×50
3-18×56 64
5-30×56
MeoPro 6×42 49
3.5-10×44 51
4.5-14×44 50
4.5-14×50 56
6.5-20×50
4-12×50 57
6-18×50
3-9×50
Meostar R1 1-4×22 30
1.5-6×42 50
3-10×50 57
3-12×56 62
7×56
Meostar R2 1-6×24 30
1.7-10×42 49
2-12×50 57
2.5-15×56 62
8×56
ZD 1-4×22 30
6-24×56 62
MeoTac 3-12×50 58
Minox ZX5i + ZX5 1-5×24 30
2-10x50i 57
3-15×56 62
5-25×56
Ze 5i 1-5×24 30
2-10×50 57
3-15×56 62
5-25×56
ZP5 3-15×50 57
5-25×56 62
ZP8 1-8×24 34
Nightforce SHV 3-10×42 50
4-14×50 59
4-14×56 65
5-20×56
NXS 2.5-10×42 50
3.5-15×50 59
5.5-22×50
5.5-22×56 65
8-32×56
NX8 1-8×24 30
2.5-20×50 59
4-32×50
Competition 15-55×52 61
ATACR 1-8×24 34
4-16×42 50
4-16×50 59
5-25×56 65
7-35×56
Nikon Prostaff P3 2-7×32 41
4-12×40 49
3-9×50 60
Prostaff P5 2.5-10×42 50
3-12×42
4-16×42
4-16×50 60
6-24×50
Monarch 7 1-4×24 30
1.5-6×42 49
2.6-10×50 57
3-12×56 63.5
Noblex N6 1-6×24 30
2-12×50 56
2.5-15×56 62
N6 ED 2-12×50 56
2.5-15×56 62
Vector 1-6×24 30
2.5-15×50 57
5-30×56 65
6-24×58 68
N4 Vario 2.5-10×50 56
3-12×56 62
Classic 8×56 62
3-12×56
Basic 3-12×56 62
N5 1.2-6×24 30
2.4-12×50 56
3-15×56 62
NZ6 Inception 1-6×24 30
2-12×50 56
3-18×56 63
  5-30×56
Revic PMR 4.5-28×56 65
Riton X1 Conquer 6-24×50 57
X7 Conquer 1-8×28 34
4-32×56 66
Schmidt & Bender Klassik 6×42 50
10×42
3-12×42
7×50 57
3-12×50
4-16×50
8×56 62
2.5-10×56
Klassik Hungaria 1.25-4×24 30
6×42 50
3-12×50 57
8×56 62
2.5-10×56
Exos 1-8×24 30
3-21×50 57
PM II 3-12×50 57
3-20×50
4-16×50
10×42 50
4-16×42
12-50×56 62
5-25×56
PM II High Power 1.1-8×24 30
3-27×56 62
5-45×56
PM II Ultra Bright 3-12×54 61
4-16×56 62
PM Short Dot 1.1-4×20 30
1.5-6×20
PM II Short Dot 1-8×24 CC 30
1-8×24 Dual CC
1.5-8×26 34
PM II Ultra Short 3-20×50 57
5-20×50
Polar T96 2.5-10×50 57
3-12×54 61
4-16×56 62
Stratos 1.1-5×24 30
1.5-8×42 50
2.5-13×56 62
Zenith 1.1-4×24 30
1.5-6×42 50
3-12×50 57
2.5-10×56 62
Field Target 12.5-50×56 62
Summit 2.5-10×40 48
Sightron S-TAC 1-7×24 30
2-10×32 38
3-16×42 51
4-20×50 58.4
4-20×50 FFP
2.5-17.5×56 65
SIH Hunting 1.75-4×32 38
3-9×32
3-9×40 48
3.5-10×50 58.4
SIII 10×42 51
3.5-10×44 53
45×45
6-24×50 58.4
8-32×56 66
10-50×60 69
SV 4.5-24×56 63.5
10-50×60 69
Sightmark Latitude 6.5-25×56 61
10-40×60 65
8-32×60
Sig Sauer Whiskey3 2-7×32 39
3-9×40 47
4-12×40
4-12×50 58
Sierra3 BDX 3.5-10×42 50
4.5-14×44 53
4.5-14×50 58.4
6.5-20×52 60
Tango4 1-4×24 30
4-16×44 51
6-24×50 57
Whiskey5 2-10×42 50
3-15×44 53
3-15×52 60
5-25×52
2.4-12×56 65
Tango6 1-6×24 30
3-18×44 52
4-24×50 57
5-30×56 65
Steiner Ranger 1-4×24 30
2-8×42 51
2.5-10×50 58
3-12×56 63.5
4-16×56
Ranger 4 1-4×24 30
2.5-10×50 57.5
3-12×56 64
M5Xi 3-15×50 56
5-25×56 62
M7Xi 4-24×56 62
M8Xi 1-8×24 34
Swampfox Arrowhead 1-6×24 30
1-10×24
Patriot 4-16×44 51.5
6-24×50 57.5
Swarovski Z8i 0.75-6×20 30
1-8×24
1.7-13.3×42 48
3.5-28×50 56
2-16×50
2.3-18×56 62
Z6i 1-6×24 Gen II 30
1.7-10×42 48
2-12×50 56
2.5-15×56 62
X5 3.5-18×50 56
5-25×56 62
dS 5-25×52 65
Tangent Theta TT315M 3-15×50 57
TT315P 3-15×50
TT525P 5-25×56 65
Vanguard Endeavor RS 2-7×32 40
3-9×40 48
4-12×40
3.5-10×40
3.5-10×50 58
3-9×56 63.5
Endeavor RS IV 2-8×32 40
1.5-6×42 50
2.5-10×50 58
3-12×56 63.5
Endeavor RS VI 1-4×24 30
1-6×24
Vector Optics Taurus 1-4×24 30
3-18×50 57
4-24×50
5-30×56 63
Aston 3-18×44 51.5
5-30×56 63.5
Sentinel 4-16×50 59.4
Continental 1-6×24 30
1-6×28 34
1.5-9×42 51
3-18×50 57
2-12×50
5-30×56 64
4-24×56
Marksman 4-16×44 51
10×44 52
3.5-10×44
6-24×50 57
6-25×50 58
4.5-18×50
Paragon 3-15×50 Gen II 57
5-25×56 Gen II 64
3-15×50 Gen II
Vixen VI 2-8×32 39
VII 1-4×24 30
2.5-10×50 58
2.5-10×56 65
6-24×58 68
VIII 2.5-15×50 58
LVF 3-12×40 47
ED Tactical 5-30×56 65
Vomz Pilad P 4×32 38
6×42 49
10×42
8×48 56
12×50 58
8×56 64
Pilad PV 1.2-6×24 30
1-7×25
3-9×42 49
2-10×48 54
2-10×52 58
Vortex Crossfire II 1-4×24 30
2-7×32 39
3-9×40 48
4-12×44 51
3-9×50 58
Diamondback 1.75-5×32 39
2-7×35 44
3-9×40 48
4-12×40
3.5-10×50 58
Diamondback Tactical 4-12×40 47
4-16×44 51
6-24×50 57
Strike Eagle 1-6×24 30
1-8×24
5-25×56 63.5
Viper 6.5-20×50 58
Viper HS 2.5-10×44 52
4-16×44
4-16×50 57
Viper HSLR 4-16×50 57
6-24×50
Viper HST 4-16×44 52
6-24×50 57
Viper PST Gen II 1-6×24 33
2-10×32 41
3-15×44 53
5-25×50 58.4
Golden Eagle 15-60×52 61
Razor HD 5-25×50 59
Razor HD Gen II 3-18×50 59
4.5-27×56 65
Razor HD Gen II-E 1-6×24 33
Razor HD Gen III 1-10×24 33
Razor HD AMG 6-24×50 59
Yukon Jaeger 1-4×24 30
1.5-6×42 50
3-12×56 65
ZCO 4-20×50 57
5-27×56 63
Zeiss Conquest V4 1-4×24 30
4-16×44 50
6-24×50 56
3-12×56 62
Conquest V6 1.1-6×24 30
2-12×50 56
3-18×50
5-30×50
2.5-15×56 62
Victory V8 1.1-8×30, 36
1.8-14×50 56
2.8-20×56 62
4.8-35×60 67
Victory HT 2.5-10×50 56
3-12×56 62

Conclusion

To sum up, this is how to use this guide:

  1. Check whether your riflescope has an adjustable objective ring – if it does, you won’t be able to mount the adapter!
  2. Keep in mind that the magnification of your riflescope should not be greater than 8x if you want to realize the full potential of the clip-on!
  3. Look for your riflescope in the chart to find out its objective diameter. Alternatively, you can measure the outer objective diameter with a measuring tool.
  4. Purchase an appropriate adapter. Keep in mind that some manufacturers, such as Pulsar, list the diameter of the objective lens in the adapter name instead of the outer objective diameter. Most, however, use the outer objective diameter as it is less confusing.

You can contact us (info@optics-trade.eu) if you require help or wish to get additional information on the topic.

Picture gallery

1 thought on “The mounting of NV & thermal riflescope clip-ons (outer objective diameter chart)”

Leave a Reply

Your email address will not be published. Required fields are marked *