Video: The FULL AUTO Review of the CMMG MK47 AKS13 7.62x39mm SBN Mutant


After months of testing, the Gears Crew gives their take on the CMMG MK47 Mutant and why it is such a fun gun to shoot both in Semi and FULL AUTO rate of fire. CMMG didn’t just piece together another 5.56 rifle and turn it into an AR/AK, they designed their own purpose built rifle.

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Video: Windham Weaponry RMCS-4 Multi Caliber AR Chambered in 7.62x39mm

762 ww cover

On our last look of the #WindhamProject we are looking at the rifle chambered in the 7.62x39mm round with the AK magazine. I am enjoying working with Windham on the project and learning all the cool features of the rifle that makes it an AWESOME investment.
The #WindhamProject is a Windham Weaponry RMCS-4 AR which is chamber in 5.56, .300BLK, 7.62x39mm, 9mm and .22lr. We have grabbed some of the most awesome parts of the gun industry to help us better customize this rifle and show you how you can turn this rifle from something awesome to something EPIC and drool worthy at the range.
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Video: Shooting the CMMG MK47 with Krink Muzzle Break


Today we are looking at the CMMG AKS13 SBN with pinned Krink muzzle device. We have a full review coming up on this gun in the near future. We are also reviewing it alongside a few other 7.62x39mm rifles that use the AK style magazine such as the:
RAS47 MOE AK from Century Arms
Windham Weaponry RMCS-4 Multicaliber AR (#Windhamproject)
IWI US Galil Ace.

Have you shot this gun? What is your take on the gun?

The Economic Beauty of Guns

Image result for usa flag

Guns – They are an integral part of American society, culturally and economically. America is extremely wealthy because of its’ economic freedoms. The people have the ultimate control of the gun market and dictate the price of how those guns are sold. This is the beauty of a free market. The American gun business is so big that it manufactures more firearms than any other nation in the world. It  puts more than $33 billion in the U.S. economy annually and the National Shooting Sports Foundation says the gun industry supports 220,000 jobs within the United States alone. That is more than double General Motors’ 101,000 employed in the U.S. and their 213,000 employed worldwide.

The reason for the gun industry’s success is the demand by the people for it. The citizens of the United States demand more firearms to buy in the market and in turn many manufacturing facilities are created to satisfy the demand in the market, thus employing more workers. This creates jobs that did not exist before, and these jobs put the American citizen back to work again to feed his or her family and establish a life. This process also ensures the prevailing gun culture that so many of us Americans are so proud of.

The gun industry involves not just the sale and manufacturing of firearms, it expands into creating more jobs in sectors that relate to firearms either directly or indirectly. An obvious example, and an extremely important one is ammunition. Think about the ammunition complementing the firearms. Ammo is to the firearms as syrup is to the pancakes. As more people who purchase guns, or shoot guns, they need to buy ammo to be able to shoot their guns again, or to resupply their stock if you are a hoarder or a vendor. This results in ammunition manufacturers having to expand their company and production in new locations to meet the needs of the market. When an ammunition company expands facilities they employ more people which promotes a healthy thriving economy.

Economic Impact of the Sporting Arms and Ammunition Industry in the U.S.

Direct Supplier Induced Total
Jobs (FTE) 132,584 65,180 90,222 287,986
Wages $5,513,898,500 $4,355,521,100 $4,581,758,300 $14,451,177,900
Economic Impact $19,533,701,800 $14,998,408,400 $14,755,836,700 $49,287,946,900

Chart from the National Shooting Sports Foundation

Ammo is not the only example pertaining to guns, other industries that are overlooked include, but not limited to, hunting equipment, holsters, apparel, shooting ranges and more. A quick view of the industries indirectly relating to the gun business are, clothing manufacturers, that produce camouflaged fabrics for the hunting season, or apparel showing off a popular theme in the gun world. There are small mom and pop shops  that produce a variety of holsters for handgun carriers. There are also manufacturing plants that produce hunting equipment of all sorts for all types of wild game, and recreational game. All these jobs are very important to the wealth of the United States and its’ citizens.

The impact on the economy this industry gives is extremely crucial for the United States having good health, and with the economy being good in America, it impacts the world in a positive way as well. Guns keep America economically safe and that is the economic beauty of guns.


Also, here is the tax revenue obtained by Federal and State governments.

Taxes Generated in the United States

Tax Impact Business Taxes Excise Taxes
Federal Taxes $3,658,277,000 $676,958,534
State Taxes $2,547,540,400
Total Taxes $6,205,817,400 $676,958,534

Chart from the National Shooting Sports Foundation

This article may not be copied or used without the permission of the Gears of Guns administrative team.

Copies of the statistical charts were retrieved from the Firearms and Ammunition Industry Impact Report 2016, a public source and for fair use.

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A Look at the .30-06


After the .30-03, the .30-06 (or 7.62x63mm) was first introduced to the United States Army in 1906. It remained in use until the early 1980s. The “.30” refers to the caliber of the bullet and “06” refers to the year it was introduced.

The purpose of the invention of the .30-06 was to catch up on the lighter weight, higher velocity calibers that the warring European nations of the early 20th century were creating.

The European nations were adopting the pointed spitzer bullets thus throwing the .30-03 out of style, fast. The .30-06 was created with its neck shortened at .01 of an inch (2.54mm) and loaded with a case of 150 gr (9.7) spitzer bullet type that had a muzzle velocity of 2700 ft/s (823 m/s)

The M1903 Springfield rifle, that was invented for the parent case, .30-03, was modified to effectively fire the .30-06 round. The modifications to the M1903 Springfield rifle was the shortening of the barrel at its breech, resizing the chamber so the discharged round wouldn’t have to travel so far to the rifling, and scrapping the rod bayonet.

The .30-06 is most famous for being used in the M1 Garand and the M1919 Browning Machine gun during World War II.

U.S. Military Cartridge Types of the .30-06  (Brought to you by,

  • Armor Piercing, M2 :This cartridge is used against lightly armored vehicles, protective shelters, and personnel, and can be identified by its black bullet tip. Bullet is flat base, weight 163-168 grains.
  • Armor Piercing Incendiary, T15/M14 and M14A1:This cartridge may be substituted for the M2 armor piercing round and is normally employed against flammable targets. The tip of the bullet is colored with aluminum paint. The M14A1 featured an improved core design and incendiary charge.
  • Ball, M1906 :This cartridge is used against personnel and unarmored targets, and can be identified by its silver-colored bullet. The M1906 has a 9.7 g (150 grain) projectile and flat base. Its jacket is a cupro-nickel alloy which was found to quickly foul the bore.
  • Ball, M1:The M1 has a 11.2 g (173 grain), nine-degree boat-tailed projectile designed for aerodynamic efficiency. Though it had a lower initial velocity, velocity and energy were greater at longer ranges due to its efficient shape. The jacket material was also changed to gilding metal to reduce fouling.
  • Ball, M2:With a 9.8 g (152 grain) bullet based on the profile of the M1906, this cartridge incorporated the gilding-metal jacket of the M1 projectile combined with a slightly heavier, pure-lead core. It had a higher muzzle velocity than either of the earlier cartridges.
  • Blank, M1909: This cartridge is used to simulate rifle fire. The cartridge is identified by having no bullet, and by a cannelure in the neck of the case which is sealed by red lacquer.
  • Dummy, M40: This cartridge is used for training. The cartridge has six longitudinal corrugations and there is no primer.
  • Explosive, T99: Development of a cartridge that contained a small explosive charge which more effectively marked its impact. Often referred to as an “observation explosive” cartridge, the T99 was never adopted.
  • Incendiary, M1917:Early incendiary cartridge, bullet had a large cavity in the nose to allow the material to more easily shoot forward on impact. As a result the M1917 had a tendency to expand on impact. The M1917 had a blackened tip.
  • Incendiary, M1918:Variant of the M1917 with a normal bullet profile to comply with international laws regarding open-tipped expanding bullets.
  • Incendiary, M1 :This cartridge is used against unarmored, flammable targets. The tip of the bullet is painted blue.
  • Match, M72:This cartridge is used in marksmanship competition firing, and can be identified by the word “MATCH” on the head stamp.
  • Tracer, M1: Tracer for observing fire, signaling, target designation, and incendiary purposes. The M1 has a red tip.
  • Tracer, M2: Tracer for observing fire, signaling, target designation, and incendiary purposes. Has a short burn time. The M2 originally had a white tip, but then switched to a red tip like the M1.
  • Tracer, T10/M25: Improved tracer over M1/M2. Designed to be less intense in terms of brightness than either the M1 or M2 tracers. The M25 had an orange tip.
  • Rifle Grenade Cartridges, M1, M2, and M3/E1: These cartridge are used in conjunction with the M1 (for the M1903 rifle), M2 (for the M1917 rifle), and the M7 series (for the M1 rifle) grenade launchers to propel rifle grenades. The cartridge has no bullet and the mouth is crimped. The differences between the three cartridges have to do with the powder charge and the subsequent range of the launched grenade. The M3E1 also featured an extended case neck.


Lewis Gun


The Lewis Gun

Weight – 28 lbs (13 kg)

Length – 50.5 inches (1,280mm)

Barrel Length – 26.5 inches (670mm)

Cartridge – .303 British, .30-06 Springfield, 7.92x57mm Mauser

Action – Gas Operated

Rate of Fire – 500-600 rounds per minute

Feed System – 47, or a 97 round pan magazine, and a 30 round detachable Bren magazine

Battlefield 1 Game Hype

With Battlefield 1 still being the hype in the video game industry, we are going to talk about another gun that is going to be in the game, the Lewis Gun!

Made In Belgium: USA Design

In 1911 US Army colonel Isaac Newton Lewis invented the gun based off Samuel McClean’s design. Having difficulties getting the firearm in production inside the United States because of political opposition, Lewis himself opened up a manufacturing facility in Belgium in 1913.

Relocated to England

After Imperial German advancement, Lewis relocated his plant to England, which led the English to adopted his gun for their military at the start of World War I. He had the rifle chambered in .303 British and the design was officially approved for combat service on October 15, 1915.  No Lewis Guns were developed in Belgium during the war.

Savage Arms

When the United States committed to the war in 1917, Savage Arms manufactured the Lewis Gun in the .30-06 caliber. Changing the caliber on the gun made it function differently than the .303 British Lewis Gun.  This required the magazine, feed mechanism, bolt, barrel, extractors and gas operation systems to be modified to work with the .30-06.

Anti-Tank Rifle

The Lewis Gun was designed as an anti-tank rifle, (remember that the tanks at the beginning of the 20th century were not sturdy like they are today) and was equipped in airplanes, tanks, motorcycles, and infantry alike.





WWI era MP 18

Weight – 9.21 lbs (4.18kg)

Length – 32.8 in (832mm)

Barrel Length – 7.9 in (200mm)

Cartridge – 9x19mm Parabellum, 7.63x25mm Mauser

Action – Open-bolt blowback

Rate of Fire – 1,247 ft/s (380m/s)

Feed System – 32 round detachable drum magazine; TM08

In honor of Battlefield 1, coming out October 21, 2016, we decided to do a little research on this particular World War I era weaponry. One we came across, is the Maschinenpistole 18/I, also known as the MP-18.

The MP-18 is a German submachine gun, first designed by Hugo Schmeisser in 1916 and manufactured by Theodor Bergmann.

It was first introduced on the battlefield towards the end of the war in 1918 by the German Army. The weapon was specialized for close quarters trench combat.

Production of the MP-18 ended in the 1920s. The MP-18 is the basis of design for most submachine guns that were manufactured between the years of 1920 and 1960. Notice the similarities between the MP-18 and the World War II German MP-40?










The MP-18 was developed around the idea of infiltration, fire and movement, specifically in the trenches to clear out enemy troops. In trench combat, engagements were likely to occur up to a few feet at most, and because of this, the MP-18 was made for close quarters combat.


Eliminating the Flash


Baffle Suppressor

Baffles are the most typical style of suppressors you see. You see them in the hands of NFA approved gun owners, television shows, movies, and video games. For me, baffle can suppressors, are the epitome of the espionage world. They look really cool, and they do what they’re advertised to do!

The only issues I find in the baffle can designs, aside from the headache of owning one, is the failure to evenly distribute the heat from the discharged round.  It also isn’t able to conceal the flash that is emitted from the first discharged round, depending on the caliber you are shooting with. I also don’t care for noticeable “pop” sound and a large “plume” on the very first round in the bigger calibers like the .223 or a .45 that you are trying to suppress.

When first shooting a suppressed weapon system, the only way to conceal a flash is to maintain your rate of fire. That is not practical, because you will have to pause for a brief moment to acquire another target. As soon as you pause, oxygen enters the baffle and allows for the explosion of the round to be seen.

If you wanted to be a discreet operator this can be a problem because it can reveal the guns location.

Baffle suppressors do provide excellent flash reduction, but they fail to conceal the flash after the first round is fired.

The OSS Suppressor completely eliminates the first shot fired through their groundbreaking technology.

You can see the torture test of the O.S.S. here.






How Does the OSS Work, Exactly?

If you haven’t checked out our first post about the OSS Suppressor Click here

The goal of a suppressor is to obviously conceal flash and sound, but how is this done?

The concept is simple, but applying the concept into application is more difficult.

The suppressor system needs to slow the expansion of gas from the round for as long as possible. It needs to be able to transfer all of the accumulated energy from the explosion of the round to the surface area of the suppressor.

The OSS Suppressors are specifically engineered to maximize the advantages of signature reduction without sacrificing the weapon systems reliability and durability.

The O.S.S. (Operators Suppressors System) Suppressor 

Perator Suppressor


The patented O.S.S. Flow Through Technology uses deflectors and coils to control the gas expansion through the system and pulls gases away from the bore-line.

Gas expansion throughout the Baffle VS the OSS


Naturally, consistent heat will degrade and destroy a firearm, faster than any other element.

A weakness within the baffle suppressor is that no matter the material, be it inconel, stellite, stainless steel, or titanium, the energy from the explosion of a round is transferred to the surface area of the baffle, which results in high and prolonged heat.

The baffle suppressor heats up to 1200 degrees Fahrenheit whereas the Flow Through Suppressor is 700 degrees Fahrenheit. As seen in a torture test on a fully automatic rate of fire on a Daniel Defense brand AR platform 5.56 rifle.

Heat comparisons of the suppressors



Thermal temperature rises rapidly with semi auto fire and rises even faster with full-auto fire.

The OSS is said to provide superior heat management by allowing the gas and energy transfer to occur at a natural rate, which will travel a total of 40″ before exiting through the muzzle.

This results in 70% lower temperature than the baffle suppressors and a faster return to normal temperatures after firing.

This is how the Operators Suppressor Systems work.



Cleaning up the Ghost Problem at the Range with the CMMG .22lr Conversion Kit

conversion kit

The GEARS CREW are back at it again, saving the world from the evils of ectoplasm and the Ghosts who cause it.
CMMG was kind enough to send us out the conversion kit to test along side the #WindhamProject.  We wanted to bring the caliber count up from the stock 4 calibers of 5.56NATO,7.62x39mm,9mm and .300BLK to a fifth caliber with the .22lr conversion kit.

Gears of Guns

Versions of the Kit

CMMG makes a few versions of this kit to handle the left handed rifles.
Just swap this drop in conversion with your bolt carrier group and you will be ready to shoot .22LR.  Ships with 25rd 22LR magazine. All Stainless Steel Construction, includes a 25rd Magazine.
[from CMMGs website]


I think this is an awesome training aid. Trying to introduce people who have a fear of guns and mainly a fear of the AR platform can be at times difficult. This can be due to the noise or the simple fear of recoil hurting them.

I like being able to start someone off with a .22lr and getting them comfortable using one gun with one set of controls and then being able to graduate them to the .223/5.56 calibers.  In other words, you can train on the gun that you will graduate to.  This makes you comfortable with all the different parts of the gun that you will shoot long term. This is a great way to watch people get over their fear and really start to enjoy the sport.

Attention Viewers!

We wanted to bring a new segment to the website that lets us interact more with, YOU, our audience, and show off some cool guns!

Every week we plan to release pictures of some pretty freakin’ cool guns on the internet from you the viewers, and places like our Pinterest, Instagram and Facebook pages.

All you have to do is send us a picture of your firearms via email, at “” and we’ll post it! But tell us what the firearm is and for more flavor, tell us a story about the gun like a funny hunting trip, or a sentimental story about the gun! Make it as detailed as possible! And let us know who you are if you want photo credit!

PC: @The_Bearded_Gunner



PC: @801Gun



PC: @boresightsolutions & @ssvi_llc