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Why M4 Carbine Rifle Used For More Than 2 Decades #125


M4 Carbine

The M4 carbine has been used by the military in multiple conflicts over the span of more than two decades. It is the official drink of the United States Army, Navy, Marines, Air Force, and Coast Guard.

The M4 has its critics, but most others swear that it’s the best gun in the industry. This article discusses the many advantages of the M4 Carbine rifle and its disadvantages.



History of the M4 Carbine Rifle

In the 1980’s, engineers worked on the creation of the M4 carbine in an effort to develop a new weapon for close-quarter combat.

The U.S. Army’s M4 is the replacement for the M16. It is significantly shorter, with the barrel being less than half the length of the M16, making it much easier to maneuver in smaller spaces.

The Marine Corps started replacing their M9 handguns with the M4 carbines quickly, because they were convinced that the gun was better for close-quarters combat.

The M4 has traditionally been used in places that other, full-length rifles would be difficult or impractical to use. In 2016, the Marine Corps made the M4 the main weapon used by supporting schools, security forces, and infantry battalions.

The M4 is an improved version of the M16, and it is the most widely used rifle in the U.S. Army.

M4 Carbine Design

The M4 carbine is a short-recoil operated semi automatic only weapon and it’s magazine fed. It’s made by FN Herstal and Colt. It’s fired from the shoulder, and even has a collapsible stock.

This weapon is easy to carry and transport. It’s shorter barrel and carrying handle is also detachable. These features and the M4 carbine weight also allow troops to engage the enemy quickly and efficiently no matter the time of day.

I hinted above that the M4 is actually very similar to the M16. In fact, 80% of its makeup is identical to the M16 rifle. Both guns are similar in function and purpose.

It’s possible to add many accessories to the M4, including laser pointers, night vision devices, telescopic sights, grenade launchers, and more.

A blank-firing attachment can be a very useful tool for training. If you get bored during your practice, just switch the weapon to this and shoot away.


This is a typical machine gun design. It’s also a typical model used for special operations use. It’s fully automatic and is also easy to operate, even for non-experts.

The M4A1’s barrel is heavier, more durable and more accurate than the M4. Up to around 500 meters it’s good for shooting at targets.

This rifle is a new and improved version of the M4 that’s currently in use in the Army. It’s ideal for most any situation.

Mark 18 CQBR

The M14 rifle was based on the Soviet SKS design and was intended to replace the venerable but over-gunned M1 Garand. It’s called the “Mk18 CQB,” or just “the Mk18.

Enhanced M4 or Colt Advanced Piston Carbine (APC)

The biggest advantage of this model is that it cools more effectively than other models. It also has greater accuracy and less stress on parts.

Armwest LLC M4

This is the M4 that was created by M4 critic Jim Sullivan, in order to address shortcomings he observed in the original weapon.

The Ultimax is the new and improved version of this weapon. The M4-203’s cyclic components are double the weight of those in the original M4.

Colt Commando

Special Forces are made from spare parts that the Army has lying around.

The M4-SBR Commando is based on the M4, but it features a full auto mode, not a 3-round burst.


As the Army’s requirements for a new assault rifle have been finalized, the Colt Model 925 RAS is now a modular weapon system (M4 MWS).

This new model is much better suited to existing M4s than the old one. However, it wasn’t adopted when another designation proved to be better-suited for existing M4s.

M4 in the News

Military men have been using this rifle for many years. It’s been in the news for being used in military operations. This story from NPR talks about how the US military plans to continue using the M4, the most widely used rifle in American service.

Another story tells of rivaling weapons and how they’ve performed against the M4 rifles. In a 2007 comparison of the M4 and other carbines, the Army tested each weapon using ten rounds per weapon. The Army found that the M4 was slightly faster to fire but more prone to jamming.

Unfortunately, the M4 didn’t live up to the expectations of the industry. The development of the Internet did have some discouraging effects on the military. It made some changes to the military that needed to be made.

It was recently announced that the Army’s top-of-the-line rifle, the M4A1, didn’t stand. The competing weapons were tested for reliability and durability. One of them performed better than the others. Even with the results, the Army still chose to stick with its coveted rifle.

The U.S. Army has been upgrading its M4s to the prized M4A1, and in 2016 it’s going to begin replacing. When I first started writing articles for this blog, upgrades were expected to continue for about two years.

The army actually planned to upgrade the M4 even further and called this plan the M4A1+ initiative. Despite the fact that the data was included in various proposals, the Army really didn’t think the upgrades were worth the time, effort, or money.

A Range of Problems

The Army’s controversial switch from the venerable M-16 rifle to the new AR-15 rifle has been plagued by problems such as jamming, which have not been fully resolved by the manufacturer.

A few examples include, over one-third of troops using the M4 reported that the hand guards often rattle and become incredibly hot when firing.

The following are issues that you may encounter while using the E-Series. Feed jams, double feed, difficulty locking in the magazine, and difficulty zeroing the optic.

We heard from customers that the handguards and optics didn’t meet their expectations, so we upgraded them. We also found that the stock was being used improperly, so we replaced it. These improvements greatly reduced the number of complaints.

The M4’s performance and reliability have been vastly improved. It was reported to have occasional problems with reliability and maintainability, but they’ve been significantly lessened.

These troops actually said that during more than a dozen engagements, there were no real problems with their weapons. That is quite remarkable.

The M4A1 was the gun of choice of soldiers in the Gulf War because of its reliability and range. Now it’s even better than when it first came out in 1990.

Converting to a Gas Piston

A conversion kit for the M4 carbine allows it to be used as a gas piston rifle, but for those who want the feel and sound of an M4 carbine, the options for converting it into a piston rifle are available.

Although this is a bonus at first glance, it’s less practical. Gas pistons are prone to causing jams and lower accuracy, and they’re heavier than electric pumps. That’s when the entire weapon needs to be disassembled to fix the jam.

A common problem with this change is that it causes the gun to become very loose. This means the bolt carrier does not fit correctly in the buffer tube, which then allows the gun to move forward or backward when shot.

Gas pistons are heavy, require more maintenance, and are not recommended for the military. This causes wearing of the parts, and the gas piston isn’t generally recommended for the military.

Crosman M4-177 Combo Specs

Max Velocity660 fps
Overall Length33.75″
Weight3.75 lbs
Trigger Pull4.0 lbs
Suggested forPlinking/Fun
Caliber.177 (4.5mm)
Muzzle Energy4.93 ft/lbs
Barrel Length17.25″
Shot Capacity18
Cocking Effort3-10 pumps
Front SightAdjustable for elevation
Rear SightAdjustable for windage
PowerplantMulti-pump pneumatic
Body TypeRifle
Fixed/adj. powerFixed

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Tippmann Tactical Airsoft Rifle Omega-PV 13ci Air #116

m4 rifle tippmann tactical airsoft

Tippmann Tactical Airsoft Rifle Omega

Tippmann Tactical OMEGA PV2 airsoft rifle can shoot full and semi auto, you can ditch the air hose of traditional HPA guns . It’s got a technology that gives you great performance, consistency and speed. It has a flip up front and rear sight that can be adjusted with an internal regulator. You are able to mount accessories with the metal receiver and aluminum rail system. You can adjust the firing range with the help of a hop-up. The pull is preset and the ROF can be adjusted. It can run on 2x 12g CO2 cartridges and is powered by 2x 12g CO2 Cartridges.


M4 Carbine Introduction

The 5.56mm NATO rifle is a lightweight, gas-operated, air-cooled, magazine-fed, selective rate, shoulder-fired weapon. The standard issue firearm for most US units is the M16A2, a modernized version of the AR-15.

With a shorter barrel, collapsible stock and detachable carrying handle it provides soldiers operating in close quarters with improved handling and the capability to rapidly and accurately engage targets at extended range, day or night.

The M4 carbine is a shortened variant of the M16A2 rifle. It allows soldiers to engage targets at extended ranges with accurate, lethal fire.

The M4-series Carbine achieves over 80% commonality with the M16A2 Rifle and replaces all M3 9mm caliber submachine guns, and select M9 pistols and M16 rifles.

The Army is pursuing a two-phase PIP to keep the M4 carbine inventory strong.

The Army is upgrading its M4 carbines, the guns it uses to fight America’s enemies. Phase I of this project is designed to make the M4s better and more reliable so they can be used by the Special Forces.

If you have a M4, you might as well upgrade to an M4A1. Compared to the M4, the M4A1 has full auto capability, a consistent trigger pull, and a slightly heavier barrel. The heavier barrel is more durable and holds up better to the heat produced by high volumes of fire.

The new M4A1s will come equipped with new and upgraded ambidextrous fire control, as well as a new charging handle that makes it easier for troops to charge their weapon without taking their hand off the rifle.

Project Manager Soldier Weapons (PM SW) initiated Phase I by modifying its contract for the production of M4s to the M4A1. The PMSW has taken delivery of 9,582 new M4A1s to complete this action.

The U.S. Army will continue to field the M4 carbine until at least 2017. PM SW also held a competition for the manufacture of 24,000 additional M4A1 carbines. Remington Arms won a contract to provide handguns to the US armed forces.

The Pentagon plans to develop several courses of action in response to the GAO ruling and concern about the competitions. Once the M4A1 and M4 contract dispute is resolved, other services will be able to place their orders against that contract as well.

The main thrust of the new phase of the project was to upgrade existing M4s to the M4A1 configuration. The Army is converting all M4s to the M4A1 standard and is planning to spend $30M over a four-year period to do so.

The Army will finish the upgrades by purchasing components that support modifications work orders (MWOs) that will be applied by small arms readiness and evaluation teams (SARETs).

This month, the Army is awarding six contracts for modular weapon platforms. Of the five awardees, two were small businesses. This award reflects the Army’s success in the broadening of the opportunities for small arms contractors and strengthening the diversity of the industrial base.

We’re looking forward to awarding the final contract for the barrel and bolt assembly this summer. Soret will start upgrading its maximum monthly output of armored vehicles to 8,000 starting in late summer of 2013.

PM SW completed its best value M4 carbine bolt and bolt carrier assembly competition in April 2012, but the competition was supposed to finish this year in summer. None of the 11 competing designs were accepted into the contest, so they did not meet the requirements.

The M4 has a reliable design. It’s durable. And it can withstand extreme cold. The only way to know for sure is to fire the gun! We saved almost two million dollars as a result of the early completion of the competition.

The conclusion of the bolt competition will have no impact on the search for a better forward rail assembly. The PM SW bid sample tested for a forward rail assembly competition in early August.

In early 2013, the Army will select from up to three finalists to win a contract. If the Army determines the winning rail system should be procured, it’s expected the deliveries of new rails will begin in the summer of 2014.

The M4 PIP is just another step in a long history of continually improving the Soldier’s weapons. The Army is making improvements to their M4 rifle every time the M4 is replaced. They have already made more than 90 proposals for the M4 carbine since its introduction.

A new trigger design has been incorporated into the weapon which makes for a more user friendly system for Soldiers to carry and fire.

The M4 carbine is a great gun that was designed from the ground up to be the best weapon system for the Army and it continues to evolve and improve.

M4 Rifle Design Works The Best

The mid-length gas system on the M4A1 carbine greatly extends the life of the weapon system, while increasing its overall performance compared to a carbine-length gas system, according to a study conducted by Naval Surface Warfare Center – Crane.

The U.S. Navy’s Crane Center is responsible for testing, evaluating, procuring, and managing the life cycle of the U.S. military.

The Special Operations Command’s M4A1 Carbine is an advanced assault rifle that is used by the U.S. military. This particular model of the gun was used by the soldiers who were testing the new mid-length gas system.

In the same vein, civilian shooters and those who compete in the United States might find this study to be very interesting. Special operations forces who customize their M4 variants will appreciate this book, but the evidence presented backs up what they have believed for years.

The answer is that the M16 was a semiautomatic assault weapon and the M4 is a fully automatic rifle. During the development of the M4, the gas system in the M16 had to be redesigned, according to Crane.

When the M16 first came out, it used a 20-inch barrel and gas system, but they shrunk it down to fit a 14.5-inch barrel.

The smaller, lighter cartridge, the shorter barrel, and a shorter-than-normal gas port put more pressure on the shooter than an 1857 cartridge. The decreased distance from bolt face to gas port increased port pressure, which allowed for more effective use of propellant.

The M4’s port pressure was 17,000 psi while the M16’s port pressure was 10,000 psi.

In fact, many of the M4 clones use longer barrels and utilize mid-length gas systems. This adjustment shortens the length of the barrel. If the barrel is too long, the bullet will travel further than normal and if it is too short, the bullet will travel less distance than what would normally be expected.

Tippmann Tactical Airsoft Rifle Omega Specs

m4 rifle tippmann tactical airsoft
Max Velocity400 fps
Overall Length30.5″
ScopeableWeaver mounts
Shot Capacity120
BarrelSmooth bore
Front SightAdjustable for windage
Rear SightAdjustable for windage
PowerplantPCP & CO2
Trigger ActionSingle-Action
Hop UpAdjustable
Fixed/adj. powerMultiple settings

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Best Colt M4 CQB-R Airsoft Review #11


Colt M4 CQB-R Airsoft Rifle Review

The M4 CQB is a Sub Machine gun. It represents a significant upgrade over the default engineer weapon, offering a much higher damage per shot while maintaining a similar rate of fire, accuracy, and effective range.

The M16 is a classic SMG that’s still used by the U.S. Army and others. It’s also considered a good starter SMG for players who want to use the M16 in multiplayer. However, with the many other SMGs available later in the game, the M16 is overshadowed by these weapons.


Indoor airsoft is a game that is played inside of a closed-off area like a room, gym, or even on a piece of equipment like a basketball court. This is unlike traditional airsoft that takes place outdoors.


What to Consider Before Buying an Airsoft (AEG) Rifle

When you are in the market for a new gun, you’ll find many different options available to choose from. Each specific gun, make, and model seeks to meet specific needs for specific users. Below is a quick guide to help you select the best Airsoft rifle to meet your needs, or click to view our synopsis of the best airsoft machine guns.

“Take note, however, that there are three types of power sources for airsoft rifles: Spring-powered guns, AEGs (automatic electric guns), and gas-powered guns.


Spring Powered Airsoft Rifle

A spring-powered rifle is a mechanically powered rifle that requires the gun to be manually cocked prior to each shot. These tend to be less expensive, however, they are less durable than battery and gas-powered guns and are limited in power and range.

Spring-powered rifles are not ideal for gameplay due to their slow rate of fire. Young players may find it difficult to cock the gun before each shot as well.


Automatic Electric Guns

AEG’s are battery powered rifles. They are the most common type of Airsoft gun. AEG’s run on batteries and use a motor-driven piston assembly to shoot BBs.

AEG’s on the field are not only useful for beginners but they also work great for intermediates as well as pros! In fact, AEG’s are a great option for any type of player regardless of skill level.

Airsoft Rifles Powered By Gas

Gas-powered rifles tend to be either CO2 or green gas powered. Inexpensive guns have less power than more expensive ones and are less robust in construction. They’re great for hunting or target shooting, but don’t last forever. If you want something that’s going to stand the test of time, look for one that has a stronger frame and the best barrel you can afford.

There are a few things you need to consider when choosing the right weapon for your needs and comfort level. Some players are power sources while others prefer electric weapons for their simplicity. The gas-powered weapons are usually better for longer games and/or more intense scenarios.


There are several parts to a gun: the barrel, the stock, the trigger, the magazine and how it is attached. There are several options to select from to alter a firearm.

The caliber or size of the bullet. The distance that the bullet can travel. The weight of the bullet.

Weight of the gun in pounds and ounces. The size of the gun compared to yourself (not too big, not too small). Does the gun allow for future upgrades?

Colt M4 CQB-R Airsoft AEG

This fully automatic Colt M4 rifle delivers high-powered shot velocities that put you ahead of your competition on the battlefield. The gun is a 1:1 scale replica of a real M4 and features authentic Colt trademarks on the receiver.

This particular gun has the option of being fitted with a 6-position adjustable stock and a high-capacity magazine. It has a shot velocity of 390-400 fps using.20g BBs.


This rifle is great for cqb airsoft skirmish scenarios and has a Weaver/Picatinny quad rail for mounting optional flashlights and scopes of your choice.

Long range optics use magnification to make distant objects seem closer than they really are, which helps them in hunting and shooting long distances. Magnification usually means that your image gets bigger and appears more “close” to your target. But because it is still on the far side of the focal length, you must compensate by bringing your camera closer to you, thereby making a “focal-plane” that is farther away.

What’s Good

Lightweight, easy to use, and small. Suitable for indoor and outdoor play, it’s also easy to adjust with interchangeable sights. It’s compact, making it easy to take along anywhere. With an adjustable rear sight, you can get the right shooting angle depending on your target.


What’s Bad

BBSs are the primary source of online information, but they can be a headache to maintain. When they stop functioning, it means your entire online presence has stopped working too. If your BBS goes offline, it’s time to make some changes to how you manage your site.

Power Source

The Colt M4 CQB-R is an electric pistol from Colt that boasts the ability to fire at over 100 rounds per minute (rpm) in its default setting and a total firing capacity of over 1,600 rounds. This means you can shoot like a pro with this gun.



The BB gun comes with a sample bag of 6mm bbs, and can chamber both the.12g bb and the.20g bb. The range of the gun may increase with the heavier bb.

We recommend the.12BB for indoor play and the.20G for outdoor environments.

Shot Velocity

The Colt CQB-R M4 is a high-velocity rifle with exceptional range and speed. It can hit a target out to almost 380 feet away with the right ammunition.


A BB gun may look like a simple toy, but it has some great qualities. For instance, you don’t need much space to shoot a BB gun. It doesn’t need any kind of target either. This is because it shoots with pellets. You will find that you can shoot fast as you wish.

Close Quarters Battle Receiver Introduction

The Close Quarters Battle Receiver (CQBR) is a replacement upper receiver for the M4A1 Carbine, developed by the U.S. Navy. The CQB R has a 10.3 in (262mm) barrel which allows for an overall shorter weapon, making it easier to use in, and around, vehicles and in tight, confined spaces.

The AR-15 was originally designed to use a 30-round magazine and is capable of accepting a 17-round magazine or any of the many aftermarket magazines available for it. The overall length of the upper receiver is 2.5 inches (3.5mm), which is almost the same as that of the standard M16, and the overall length of the weapon with the stock retracted is 4.75 inches (5.5mm). Special forces units, however, tend to use the CQBR for much more than just those situations mentioned above.



Modular weapons such as the AR-15/M16 and the AK-47 are made up of a series of common components that can be attached together to customize the weapon to suit the operator’s needs. This includes the standard magazine and the upper receiver, which is the part of the rifle that contains the trigger group, barrel, gas system, and any number of add-ons and accessories.

In response to the close quarters battle concept, Crane developed a lightweight, affordable receiver to fit under the operator’s helmet. This was a revolutionary development in combat radio gear at a time when the M4 carbine and MK20 were in their full-blown development stages. In addition, the original design used commercially available components, further reducing costs and making this one of the first combat receivers to be fielded in the Marine Corps.

The M1903 pistol, the “Model of 1903,” was the first American semi-automatic handgun adopted by the U.S. Army in the term Mod 0/1 was coined for the M1913A1 rifle (the GPMG) and the term Mod 1 was coined for the M1918 Enfield. As the Special Purpose Receiver morphed into the Special Purpose Rifle, the complete CQBR-equipped carbine has been type-classified as the Mk 18 Mod is a misnomer, as it refers to the M1913A1 rifle and the M1915Enfield rifle. The carbine version of the Mk18 is the Mk18 Mod.


The CQBR provides operators with a weapon of submachine gun size, but firing an intermediate cartridge, for scenarios such as VIP protection, urban warfare, and other close quarters battle (CQB) situations. It is designed to take out a target and then move on to the next without taking a break.

The CQBR Mod 0 is a standard AR-15/M16-type rifle. While it has improved in many ways over previous AR-15-type weapons, it’s still a basic rifle.


CQB rifles are made from modern military style stocks, shortened barrels and opened gas ports. They come in two main types, either the standard or the special, which have more features like flashlights, laser pointers, etc.

CQBR type 2A: NSWC assembled with contracted and/or overhauled parts, naked without any accessories or buffer. The buffer in the host carbine would be used or upgraded as necessary via the supply system same as type 2.

CQBR (or Carbine Quality Buy-Ride) is the third model of Colt’s “quality buyer” system, and is a variant of Colt’s earlier CQBR (or Carbine Quality Buy-Ride) and CQBR II.

The buffer in the host carbine would be used or upgraded as necessary via the supply system, same as type 2. The MK18 is a carbine that was developed for the US Army by Barrett (now Remington) of USA. MK18s were made at the Naval Surface Warfare Center Crane Division in Crane, Indiana.


An upper receiver is a standard AR-15 rifle receiver. It is a standard AR-15 receiver that has been modified to allow the mounting of a variety of attachments.

While most AR-15s don’t need anything special to run one, some AR-15 rifles come with more than what is needed and some even come with extra. If you are looking for the best AR-15, this should not be a deciding factor in choosing one.

This is a great way to make your rifle perform well even in the most extreme circumstances. Most AR-15s come with a gas system that is specifically designed for long-distance shooting. In contrast, this receiver has a gas system that is optimized for short barreled shooting.

Sight: Initially, detachable carrying handles were cut off so that only the rear sight could be used. However, most of these have been replaced with the similar Lewis Machine & Tool adjustable rear sight.


If you love to play the airsoft that has different equipments or camouflage design for you to choose such as digital patterns, woodland patterns, digital camouflage patterns etc. to support you to win the airsoft game. You can also use the 5% off promotion code to select your adaptive camouflage clothing and subscribe to our newsletter to get the latest information and promotion.

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