Knife Review: ANV M311 Spelter

Join me in this detailed review of the ANV – ACTA NON VERBA Knives M311 Spelter.

The M311 Spelter is a distinctive survival/tactical knife with a large number of options, so you can virtually create your own customised version of it. You can select from two blade shapes, two blade steels, four blade finishes, along with three handle and sheath colours.

In this feature review we are looking at the blade shape with choil, in Elmax steel, Topographic blade coating pattern, with Olive handle and sheath.

Review Videos

Starting with a short format sixty second review:


Onto a full video review covering many more details:


A few more details:

What’s in the box?:

Amazingly, this box has survived being unravelled to make it flat and a journey via checked luggage, then reassembled.

The knife comes wrapped in a foam sheet with a QC card.


A good look round the Sheath – Things to look out for here are:

For the sheath I’ve split it into two parts, with this one focusing on the main body of the sheath. It is a Kydex sheath held together with hollow eye rivets. This is the Olive colour sheath, but several other colours are available.
Knife retention is courtesy of the shaped lips at the mouth of the sheath that grip the front of the handle. There is sloped thumb ramp to provide leverage to push the sheath off the knife.
The hollow rivets mean you can fit a variety of straps, clips, cords, or other carrying systems, and also allows you to swap them over for left handed use.


A good look round the MOLLE / Belt fitting – Things to look out for here are:

Although the sheath design allows you to fit any other system you want to, the M311 Spelter sheath comes with 75mm 2M MOLLE systems straps bolted onto the sheath. The end of the strap fits through a loop and over a small tab to hold it in place.


A good look round the M311 knife and handle – Things to look out for here are:

And onto the superb M311 Spelter Knife. Remember there are two steels, and several blade finishes to choose from, so if you prefer a plain blade finish, you can have that. I rather like the Topo and its ‘0311’ elevation included in the contours. A really elegant swedge gives the effect of a harpoon style blade without actually being one, and there is a generous thumb rest forward of the jimping so you can get thumb pressure right over the cutting edge.
The handle is a mastery of 3D sculpting, and the milling lines in the micarta give excellent grip, adding to the already very stable hold you get from the palm swell, butt hook and finger groove. The handle is held on with 2 Allen head bolts.
This blade it the ‘with choil’ version.
The butt of the grip has a striking point and there is also jimping for a reverse grip hold.


The Blade and Handle – Detailed Measurements:
For full details of the tests and measurements carried out and an explanation of the results, see the page – Knife Technical Testing – How It’s Done.


The Factory edge up close:

Followers of Tactical Reviews will know my views on factory edges, but to recap:

Anyone using a knife will need to sharpen it. That first factory edge is just like the first tank of fuel that a new car comes with (or first charge of the battery).
A good factory edge is a ‘nice to have’ but not a ‘make or break’ for a good knife, as you will be putting your own edge onto it soon enough.
The factory edge does however indicate the care a knife maker has put into the final finish.
It is for this reason Tactical Reviews measures factory edge sharpness and specifications, and includes this information in the detailed technical testing.

As a further look at the factory edge, this section has been added to include some high magnification photos of the factory edges.


What is it like to use?

From the moment I picked it up, the M311 Spelter has become a firm favourite. I’m in love with the harpoonesque swedge on an eminently practically sized blade.
The two thumb positions, the first on the jimping at the front of the handle, and then onto the groove positioned behind the cutting edge let you find the ideal grip and pressure for whatever cutting job comes up.
I’m always a little cautious about using a choked-up grip with a finger into the choil, but it takes fine work to another level if you can do this safely.
Stability of grip is fantastic. The gallery below takes you through only some of the grip positions you could use, a standard grip with and without the thumb forward onto the jimping, thumb into the groove on the spine, choked up and a reverse grip.


It’s like your hand can dance all over the handle and find a comfortable and stable grip almost any which way. The swells and grip hook let you take a firm hold in so many ways.

A slight surprise for me, considering I take XL size gloves, was that the handle is almost on the large side. It certainly has plenty of room for use with thick gloves, and I’d take this over a handle being too small.

Even with quite a bit of use, the Kydex retention is still on the stiff side. For anyone intending to mount it handle down on a chest plate or other upside-down position, this is critical. I certainly would have no doubt the knife will not come out under its own weight even with a very active user, and will still need a firm thumb lever to unsheathe it.

The 2M MOLLE straps are not my favourite fitting, but even I do have to admit they are a very versatile system for a standard fitment from ANV. They are a bit of a jack of all trades as they can be belt mounted or MOLLE mounted, and will fit any belt you can find, while the hollow rivets then also allow use of cord to stabilise the sheath even more. And this is before you move onto possibly swapping them for some other mounting system which the sheath easily allows for. It is sold in the tactical range and this mount configuration definitely works well for the most common type of carry.

With no ‘hanger’, if belt mounted the M311 sits high on your body, but I do quite like this. It’s also easy enough to fashion your own belt hanger and wear it lower if you want to.

ANV’s M311 Spelter keeps asking to be used. That beautifully shaped grip makes it easy to find a hand position that suits the cutting job, whatever it is. Comfort is also excellent for extended hard use.


Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond a cutting tool or field/hunting knife.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

_______________________________________________
What doesn’t work so well for me
_______________________________________________

Blade retention on the verge of being too strong.
Sheath is very wide, limiting some attachment positions.

_______________________________________________
Things I like
_______________________________________________

Superb balance of blade shape and size.
Sculpted handle gives excellent grip.
Key areas with jimping for secure forward and reverse grips.
Elmax steel (also available in Sleipner).
Flexible 2M MOLLE mounting system.
Large drainage hole for easy sheath maintenance.
Super comfortable handle for hard work.
Four blade finishes.
Three handle Colours.
Three sheath colours.
Sheath allows for many different mounting systems to be fitted.

 
Discussing the Review:
The ideal place to discuss this review is on the Tactical Reviews Facebook Page
Please visit there and start/join the conversation.

Gear Review: Nitecore EMR10 EMR20

In this review of the Nitecore EMR10 and EMR20 portable mosquito repellers / powerbanks, we take a detailed look at all aspects of their performance and function.

The EMR10 and EMR20 are two new devices from Nitecore combining portable insect repellers with a powerbank. The EMR10 has ultrasonic repellent, a repellent mat heater and a 10,000mAh powerbank, and the EMR20 is slightly smaller and simpler but without the ultrasonic function.

If, like me, you protect everyone else from mosquito bites, by being the one the mosquitoes make a beeline for, then you may be as pleased as I am to find the new Nitecore EMR10 and EMR20 portable insect repeller devices.

The thermal runtime graphs for these units are a first for Tactical reviews with the final graphs having 3500 manually entered data points!

Making his first appearance below is “Stoppo”, Tactical Reviews’ “don’t do that” guardian. Mosquitos beware, armed with the EMR units Stoppo says NO!

Review Videos

Starting with a short format sixty second review:


Onto a full video review covering many more details:


Looking closer at the EMR devices:

Both units boxed and unboxed, before we go into the finer detail.

What’s in the box – EMR10:
Along with the main unit are a charging cable, instructions and 10 of the double-size repellent mats.


A good look round the EMR10 – Things to look out for here are:
Of the two, it is a bigger and more feature packed unit, with the EMR10 there is a lot to see.
The OLED screen has a protector you need to take off. Notice the slider on the bottom, we’ll come back to that. Molded into the rubber section on the sides are some grip grooves. On each side are small ultrasonic speakers that emit a dual frequency repelling sound. On the back is a metal wire clip that is designed to work with MOLLE / PALS, pocket or belt use. The top has a USB-C port for charging and for use as a powerbank.
The repellent mat heater/holder has a retaining spring wire to keep the mat from falling out.
Then onto the EMR10’s biggest trick, the removable twin 21700 cells.


What’s in the box – EMR20:
Along with the main unit are a charging cable, instructions and 10 of the double-size repellent mats.


A good look round the EMR20 – Things to look out for here are:
The EMR20 is a smaller and simpler unit which has no grip texturing or screen. Instead it has a set of four indicator lights plus the power switch has dual coloured illumination. On the back is the same metal wire clip used by the EMR10 that is designed to work with MOLLE / PALS, pocket or belt use. The top has a USB-C port for charging and for use as a powerbank.
The repellent mat heater/holder has a retaining wire spring to keep the mat from falling out.


Batteries and output:

The following section is all the technical testing for both units. This includes temperature measurements for the repellent mat heater, plus power curves for charging each unit, and the powerbank output for each unit.

First up is the repellent mat heater output for both units. The test was carried out on the highest, ‘outdoor’ mode which takes the heater to the highest temperature.
The temperature measurement was taken by inserting a K-type thermocouple under a used mat to keep it pressed tightly against the heating plate and insulate it. Another ambient temperature thermometer was also recorded, making it three temperature measurements being monitored.
For this dual run I had to set a camera on time lapse photo to take a photo measurement every 30s. Unfortunately I had no computer logging so had to manually type each measurement – over 3500 of them!
The resulting graphs are very interesting. They show the temperature varying between an upper and lower limit. The EMR10 keeps the lower limit higher than the EMR20 and as a result uses more power and has a lower runtime. The graphs do speak for themselves, so take a bit of time to read these.
Also included are some thermal images of the EMRs during this test taken with a FLIR thermal camera.


The next gallery shows the USB input and output graphs for each unit. Charging graphs are from empty to full. The powerbank graphs show each unit charging a Oneplus phone on fast charging (9V output); they are not the full capacity of the powerbank, just to show the output characteristics which are excellent.

What it is like to use?

I want to start this section by introducing my very helpful assistant, Klaus. One of the things I was worried about with the EMR10’s ultrasonic repeller is if it would distress animals. Dog whistles are also ultrasonic (above human hearing range) so I needed to use the EMR10 around a dog to see what would happen. Not once did Klaus seem to react at all to the EMR10 negatively, or even pay any attention to it, so assuming he could hear it, it didn’t bother him. A good start.

Nitecore make and supply double size repellent mats. This is clearly the easiest way to load up the EMR10 and EMR20. It is possible to use two standard size mats instead giving you more flexibility.

You can see in one of the photos how the mats go almost white when the active ingredient has evaporated. The photo shows areas on the mat around the heat shielding that have gone white on this part used mat.

An observation relating to the EMR10’s display and capacity indication is that I’ve found the percentage show to not be accurate at all times. You can use the EMR10 while it is on charge. While doing this, the battery percentage always stays lower than it really is. You can see the input power as well on the screen and as this gets closer to being fully charged, the input watts gets lower and lower (the example here shows 10W input) but the percentage charge indicates it is much lower than it really is. Once you turn off the EMR10 it recovers and corrects itself. Just something to be aware of and I suspect relates to the charge percentage being based on the cell voltage which will of course be lower while the repeller is turned on.

I’ve been using both the EMR10 and EMR20 in a variety of indoor and outdoor locations carried separately or clipped onto a bag.


So how did they do?

Firstly, with me being apparently the finest of dining for mosquitos, if they are determined enough, you will still get bitten; I did. I’ve been bitten when covered in deet, so using repellent mats outdoors might deter some, but is not absolute protection.

It is not at all possible to properly measure the effectiveness of these repellers as the number of bites will also depend on the time, temperature, and hatching of the insects, so this can be impressions only.

Assuming the mats themselves are effective, I have been aware of the aroma coming from the mats. Considering this is outdoors, that is reassuring. Effectiveness is so subject to wind direction and strength, so you might not actually have any cover of the repellent and insects might reach you undeterred. Where the EMR10 has another string to its bow, is the ultrasonic repeller. The ultrasonic won’t be affected by wind, but having no active ingredient, it again relies on the mosquitos not being determined to bite.

NOTES on the repellent mats:

There are a few different active ingredients used in repellent mats, and these are also frequently in combination with Piperonyl butoxide. Prallethrin, Transfluthrin and D-Allethrin are the most common with Nitecore’s MRM10 Mosquito Repellent Mats using Prallethrin.

Piperonyl butoxide (PBO) is a man-made pesticide synergist. By itself, PBO is not designed to harm insects. Instead, it works with bug killers to increase their effectiveness. PBO is often combined with natural pyrethrins or man-made pyrethroids. It has been used in pesticide products since the 1950s, when it was first registered in the United States.

A repellent mat needs to be changed when it turns white. You can use Repellent Mats for a shorter period of time than the manufacture specifies and they will still be just as effective. However, if there is going to be several days between usages, you might want to keep the mats in their foil packaging or in a sealed plastic bag between uses.

Having used them a lot, the one feature I wish they had was an auto-off timer. Once you turn on either one of them, they will run until the battery is flat or you turn it off. I found that treating at critical times was more important than all night and I would have preferred to be able to fall sleep with the repeller turning itself off after an hour or two and leaving power to run on another night. On this subject, the EMR10 allows you to either only run on one of the 21700 cells, or carry spares.

The clip has a one-way design where it fits on much more easily than taking it off. Good for not losing it, but on occasion puts up a bit of a fight to take it off, especially from MOLLE more than from a pocket.

Initially I was dubious about how much I would want to use the powerbank function when I want the power for insect repelling. But, after travelling by air a few times with these devices, the use comes from having a powerbank to use on the plane, and once getting to where I really need the repeller, then recharge and only use it for the repellent. So like this, the two functions allow for infrequent use as a powerbank while travelling, but then change to only using them as repellers when not travelling.

While using the EMR10 and EMR20 I have been bitten. I am convinced I would have been bitten more without them. The most difficult aspect of their use is the protection zone they can provide. If you are walking, then the repellent vapour is trailing after you and not surrounding you. If there is wind, the repellent is blown away. In instances where you are not moving and there is wind, you need to put the device a few meters away from you and up-wind.

Some of the better results are for smaller or enclosed areas. Treating a tent, or a hammock net are idea uses. While on holiday, using it in a hotel or guest room works well.

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond that covered in the review.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

I’m trying something slightly different and starting with what doesn’t work so well, so I can finish on a more positive note.

_______________________________________________
What doesn’t work so well for me
_______________________________________________

No auto-off timer.
Clip can be awkward to remove.
USB-C port cover needs a firm hand to get it out of the way.

_______________________________________________
Things I like
_______________________________________________

Portable outdoor insect repellent device!!!
Double size repellent mats (and able to take two standard mats).
Powerbank function with rapid charge 9V output supported.
Up to 18W input power when charging.
Indoor and Outdoor modes.
Secure one-way clip.
EMR10 has replaceable cells.
EMR10 can run on one 21700 cell.
EMR10 OLED display is informative.
EMR10 also has an ultrasonic repellent.
Removable secondary heat shield.

 
Discussing the Review:
The ideal place to discuss this review is on the Tactical Reviews Facebook Page
Please visit there and start/join the conversation.

Knife Review: Extrema Ratio K-TALON

Extrema Ratio’s K-TALON is an elegant, super-slim karambit knife with a fixed, hooked hawksbill blade and grip-ring. K-TALON comes in two versions of blade finish, Dark Stone and Stone Washed, both shown in this review and the video.

This review of the Extrema Ratio K-TALON includes an in depth video with overview and detailed measurements, plus image galleries and more..

Detailed Video Examination

This video takes a detailed look at the K-TALON and also includes some tips on fitting an Ulti-Clip to the K-TALON’s Kydex sheath.


A few more details:

What’s in the box?:


A good look round the K-TALON sheath – Things to look out for here are:
Included in this review are the two optional clips; the Ulti-clip slim and the belt clip. The K-TALON’s sheath is slim, made from Kydex and has a drainage hole. The blade retention can be adjusted via the two fastenings at the mouth of the sheath. Out of the box, the sheath has a paracord neck lanyard. The Kydex is held together with hollow rivets and along with slots provides a variety of mounting/fixing options.


A good look round the K-TALON – Things to look out for here are:
K-TALON has a very slim profile and the grip-ring is generous enough to allow for gloved hands. This gallery shows the dark stone blade finish close up. The elegant curved blade has a fuller and the finish is beautifully precise.
Despite the very slim handle, the distinctive Extrema Ratio grip pattern is clearly evident – no mistaking this is an Extrema Ratio.


The Blade and Handle – Detailed Measurements:
For full details of the tests and measurements carried out and an explanation of the results, see the page – Knife Technical Testing – How It’s Done.

The blade is made from N690 steel.


The Factory edge up close:

Followers of Tactical Reviews will know my views on factory edges, but to recap:

Anyone using a knife will need to sharpen it. That first factory edge is just like the first tank of fuel that a new car comes with (or first charge of the battery).
A good factory edge is a ‘nice to have’ but not a ‘make or break’ for a good knife, as you will be putting your own edge onto it soon enough.
The factory edge does however indicate the care a knife maker has put into the final finish.
It is for this reason Tactical Reviews measures factory edge sharpness and specifications, and includes this information in the detailed technical testing.

As a further look at the factory edge, this section has been added to include some high magnification photos of the factory edges.


What is it like to use?
A hook-bladed karambit is typically associated with tactical uses and less so for general EDC. Actually in its more typical tactical usage scenario you would actually not use it for every day cutting; the condition of the edge needs to stay at its absolute sharpest for an instance when it is needed in an emergency.
I am not looking at it from this tactical point of view, but instead as an EDC blade. The hooked, hawksbill blade was initially developed as a utility knife and farming tool in Malaysia and the Philippines during the 11th century, so is very functional for certain types of cut.

As a utility / EDC knife, a hawksbill blade is very well suited to cutting cords, stripping wires, pruning plants, and cutting carpet or other sheet materials.

Though the profile is so slim, the K-TALON handles very well.


Although in this gallery I have only shown grips that use the grip ring, you can ignore the ring and just hold the handle without putting a finger though (see below). This gives even more positions to hold the K-TALON.

The karambit hawksbill curved blade works really well for some but not all tasks. Where it excels is in those cutting jobs where the curve of the blade can capture and control the cut. Cuts where a straight blade might slip off, or struggle to get purchase, the hawksbill blade grabs hold. In these instances the cut becomes much more controlled. In terms of EDC, as long as it is partnered with a straighter blade, the K-TALON makes for an exceptional addition in cutting power.

Review Summary

The views expressed in this summary table are from the point of view of the reviewer’s personal use. I am not a member of the armed forces and cannot comment on its use beyond a cutting tool or field/hunting knife.

Something that might be a ‘pro’ for one user can be a ‘con’ for another, so the comments are categorised based on my requirements. You should consider all points and if they could be beneficial to you.

_______________________________________________
What doesn’t work so well for me
_______________________________________________

It is too big to be a ‘neck knife’.
No belt clip supplied as standard.

_______________________________________________
Things I like
_______________________________________________

Excellent handling.
Grip ring is large enough for use with gloves.
Choice of two blade finishes.
Easy to carry due to the very low profile.
Adjustable tension sheath retention.
Easy to fit and adjust belt/clip attachments.

 
Discussing the Review:
The ideal place to discuss this review is on the Tactical Reviews Facebook Page
Please visit there and start/join the conversation.