Looking for the introduction of M4A 1

There are two major gun families in the world today, one is Russian AK47 gun family, and the other is American AR- 15 gun family.

1988 was commissioned by colt company to develop a new type of M 16 assault rifle with the joint participation of the war department and the marine corps.

Colt engineers shortened the barrel to 14.5 inches (370mm), added a neck to hang M203 Grenade launcher, used telescopic stock, and used semi-automatic and three-shot shooting methods. A double-layer aluminum heat shield is used in the wooden protective device.

The product number of this new type of carbine is Model 720, which was officially finalized by the military in March of 199 1 and named as "American carbine, NATO M4 with a caliber of 5.56 mm".

Because M4 and M 16A2 are very similar, in fact, 80% of their parts are interchangeable, so it was originally called M 16A2 carbine. M4 was first equipped with the 82nd Airborne Division, which was used to replace M16A1A2 rifles, M3 submachine guns and 9mm pistols used by some vehicle drivers. 1994 officially installed.

Colt also developed the 727 model with semi-automatic and full-automatic shooting modes for the navy, except that the shooting mode is exactly the same as M4, so some people call the 727 model M4 divide or navy M4. Then Colt Company developed a sub-variant of M4, and mainly designed a new flat-top cover to install the modular aiming system. 1in August, 1994, this improvement was adopted by the military, and this flat-topped M4 was officially named as "American carbine, 5.56mm NATO, M4A 1", and the Colt company number was 27.

The main improvement of M4A 1 is to change the original fixed handle into the M 19 13 guide rail, that is, the flat-top box, which can be installed with different aiming devices. In addition, the shooting mode of M4A 1 is semi-automatic and fully automatic like that of M 16A 1. The M4/M4A 1 carbine is used in American special operations forces, especially the rangers of the US Army, the reconnaissance teams of the Marine Corps and the SEALs.

M4/M4A 1 is deeply loved by other combat troops and non-frontline combatants. From1June 1997 to1June 1997, the US Army officially equipped M4/M4A 1 carbine, and by the end of1June 1999, all the active troops changed their clothes to M4/M4A 1, while the original ones. However, although the flat-top gearbox has already been put into production, the first M4 is still a standard M 16A2 gearbox with a sight handle.

M4 and M4A 1 are mainly produced by Colt and Bushmaster Arms, and M4/M4A 1 is also adopted by some law enforcement agencies. Now the names of M4/M4A 1 sold by Colt Company have been changed to RO777, 779, 977 and 979. There are also some civil M4/M4A 1, both semi-automatic and fully automatic, but in order to comply with relevant laws and regulations, the barrel length is generally above 16 inch.

At present, in view of the shortcomings of M4 long-range killing, Colt modified M4 to 6.8mm caliber and named it M468. At present, the special forces have changed many M468, but M 16, M16A, M 16A2, M 16A4 have been penetrated.

[Edit this paragraph ]m4a 1 The history of carbine

The history of M4A 1 starts from the Vietnam War in 1960s. At the beginning of 0965, the predecessor of M4A 1 formally appeared because of the poor performance of Vietnam's former main battle rifle M 14, which was launched in 1965. With the increase in the number of issues, there are more and more problems with M 16. The main problems of M 16 are: serious dirt in the bore, easy jam of the magazine, easy damage and corrosion in the bore, which is more serious, especially under the harsh conditions in Vietnam. M 16 is a threat to American soldiers, not a weapon. Americans throw away their own.

After more than a year of intense battlefield investigation and information feedback, the successor product of M 16, M 16a 1, appeared. The improved M 16A 1 not only improves the reliability, but also strictly controls the production quality. Every batch of M 16A 1 will be tested for reliability before the troops are distributed. The test results show that the average failure rate of M 16A 1 is 0.033%, which is lower than the index requirement of 0. 15%, and the average time between failures is 3000 rounds. By strictly controlling the production process, M 1 1 has good reliability. Reality proves that M 16A.

From April 1977 to spring 1979, the North Atlantic Treaty Organization conducted a series of tests to determine the new NATO standard ammunition. Most of the ammunition submitted by NATO member countries was developed based on the standard 5.56 mm M 193 M 16 ammunition, while West Germany imported 4.7 mm shell-less ammunition at that time. After all the tests were completed, 1980, Belgian SS 109 was selected as the second NATO standard bomb. The warhead of SS 109 is a composite steel core with an initial velocity of 3,000 feet per second. Its advantage is that its effective range is longer than that of American M 193, and it is suitable for light machine guns. However, to fully realize this performance, the rifling distance must be changed to 7. The rifling distance of the original M 16/M 16A 1 is 12 inch. When SS 109 is fired in a rifle with a loading distance of 12 inch, the performance of SS 109 is only slightly better than that of M 193. So M 16A 1 needs to be improved to adapt to the introduction of SS 109. The US military decided to change the rifling distance as soon as possible to improve some shortcomings of M 16/M 16A 1. At the same time, the United States Marine Corps began to improve and test M 16A 1 according to its opinions on its application in the army for more than ten years. By 1985, the army officially acknowledged its improvement.

In the next few years, after several minor modifications to M 16A2, M4 was formally born. The number of M4 is 720, 199 1 in March, 2008, the military officially finalized it and named it: American-American carbine 5.56mm NATO M4. M4 and M 16A2 are very similar. In fact, 80% of their parts are interchangeable, so M4 was originally called M 16A2 carbine.

[Edit this paragraph ]M4A 1 carbine evaluation

M4A 1 in the anti-terrorism game is a successor product after several minor adjustments on the basis of M4. M4A 1 is loved by combat troops and non-frontline combatants because of its long range and compact structure. The standard M4A 1 can be equipped with silencing laser sight and grenade.

In the game, M4A 1 is the exclusive weapon of the anti-terrorist forces. M4A 1 boasts a bragging range and lethality, is quiet and has a high firing rate. The 5.56 mm bullet it uses can penetrate the wall and cause harm to the enemy. It is easy to control and has extraordinary shooting accuracy. Adding muffler can reduce the damage, but the shooting accuracy is higher. M4A 1 count.

Games such as CS are successful in operation, but they fail in popularizing weapons knowledge. It also misled many people who are not familiar with weapons. So many people know M4 but don't know m16; ; Many people actually think that sniper rifles can swing, run and jump; Even many people think that heavy machine guns can be played by hand. ...

M4A 1 is not without weaknesses, but we didn't realize it in the game. M4A 1 Although it looks smooth and the parameters are perfect, it also inherits the consistent characteristics of American products: impressive but lacking care for users in details. After many improvements, M4A 1 still can't control the barrel overheating. After a long launch time, barrel deformation occurs frequently, but it still can't adapt to the harsh use environment. Because of the design process, the gun body is not resistant to impact. In melee, M4A 1 may not work normally after being hit by the opponent.

AK47 and M4A 1 will always be sworn enemies. I am in America and go to the shooting range every week. It can be concluded that the power of M4A 1 is far superior to that of AK in general battlefield (not very harsh environment). Many people overestimate AK, which is very powerful, but there are many bunkers. Behind the thin steel plate, the penetration of M4 high-speed bullet is actually much higher than that of AK. Why did AK defeat American M 16 in Vietnam War? . . There are actually two factors, 1. M 16 and M4 are too delicate, and they are very easy to get stuck in harsh environment, so they need to be cleaned and maintained after each battle. 2. At close range, in the Woods, AK's 7.62 bullet is not vegetarian, so it doesn't need to be accurate. If they only need strength, five AK's can basically suppress 10 M4. It is conceivable why the US military picked up AK's in the Vietnam War. But if it exceeds 50m, the power of M4/m100-200m can't be underestimated, and the damage after hitting human body is absolutely high. Generally speaking, M4 won, because different design years, high precision and high rotating bullets made this famous gun.

The price of AK47 in the United States (military version) is 500 dollars, which is about 4,000 yuan.

The price of M4A 1/M 16 is 7000- 10000 USD, which is about 55000 yuan.

The price is almost 14 times, which is why so many African countries choose AK, and those who have money don't use M4. . Hehe, the disadvantage is jam, but which gun is not? AK's price and no-cleaning feature give him an advantage, and M4' s accuracy gives him an advantage. Even mortals who know a little about shooting can fight M4 for more than 8 times. If AK, hehe, the fifth ring will be a master.

M4A 1 in CS game:

M4A 1 carbine specification parameters

Country of origin: United States of America

Manufacturer: Colt

Diameter: 5.56 mm NATO

Capacity: 30 rounds

Maximum bomb reserve: 90

Effective range: 685 rpm (CS unit)

Empty: 3.22kg projection

Weight: 4 kg

Initial speed: 2900 ft/s

Muzzle kinetic energy: 1570 Joule

Special weapon function: add (remove) silencers.

Lethality: 49 (without silencer), 26 (with silencer)

Armor correction: 0.20 magazine changing speed: 3. 16 seconds.

Firing rate: 9.37 rounds per second (without silencer) and 8.43 rounds per second (with silencer)

Evaluation: Colt M4A 1 carbine is boastful in range, quiet and high in firing rate. It uses a 5.56 mm bullet that can penetrate the wall.

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The above explanation comes from an early CS strategy book. In fact, "lethality: 49 (without silencer), 26 (with silencer)" is not accurate at all.

The following is the more accurate data of the lethality of M4A 1 in each version of CS:

1.5 dozen unarmed/armored

Head, chest, abdomen and limbs

102 | 89 25 | 2127 | 23 22 without silencer

89 | 67 21|16 23 |1718 with silencer.

1.6

Without silencer, 100+/84 chest and abdomen is about 32/22 limbs and 24 limbs.

If there is a silencer, the short-range injury will not be reduced. Generally, in the middle and long distance, you will hit your body less and hit your head less by 5 points.

Whether there is a silencer or not, the damage decreases with the distance, and it decreases faster with a silencer.

Semi-cast steel Cast Semi-Steel

Without silencer, 100+/92 chest 32/23 abdomen 40/28 limbs 20 or so.

The case with silencer is similar to 1.6.