As defined in 'The guide book for Marines" 18 revised edition:
The M16A2 rifle is a 5.56X45mm, magazine-fed, gas-operated, air-cooled, shoulder-fired weapon. It is designed for either semiautomatic or three-round burst-control fire through the use of a selector lever. The barrel is surrounded by two aluminum lined fiberglass hand guards which are notched to permit air to circulate around the barrel and further serve to protect the gas tube. A super nylon butt plate is attached to the rear of the stock to partially reduce the effects of recoil. A forward assist assembly located on the right rear of the upper reciever permits manual locking of the bolt when this is not done by the force of the action spring. A spring-loaded rataining pin can be depressed with the nose of a cartridge to allow the trigger guard to be rotated down against the pistol grip to permit the firer ready access to the trigger when wearing gloves. A dust cover is provided to prevent dirt and sand from getting into the rifle through the ejection port. The dust cover should be kept closed at all times when the rifle is not being fired. It is opened automatically by the forward or rearward movment of the bolt carrier.
weight without magazine: 7.78 lbs
with 32 rd mag fully loaded: 8.79 lbs
length overall with flash compensator 21 inches.
standard ammunition includes ball, tracer and blank
The M16 has been in the US Armed Forces' service longer than any other previous rifle.
The US service rifle in use since 1965. The M16's original design proved to be jam prone (complicated by poor ammunition and improper cleaning instruction) and was superceded by the M16A1. The M16A1 was a fully automatic rifle with a chrome lined barrel for increased reliability.
The M16A2 was the next major model which had an improved sight, the optional addition of a brass deflector for left-handed shooters a 7-in-1 rifiling, and, most notibly, a three-round burst limiter.
The next model of the M16 (the M16A3 or M16A4 I cannot find reliable sources on either even Colt) eschews the burst limiter and adds a P-rail inplace of the handgrip.
The soldier shouldered his M16.
Considered the largest leap in technological advancement of weaponry. The M-16 introduced the 5.56x45 which replace the large 7.62x51 used in the M14. The smaller round fired at a velocity of 3,100 feet per second and when entering the human body, it would fragment into 3 pieces creating an extremely large wound channel with a much lighter kick and more accuracy. M-16 was noted as an unreliable rifle during Vietnam. The reason for this is because of the ball powder that they used in the ammunition. It would swell up causing the casings to bend and stove-pipe in the chamber. After introducing the new stick powder ammunition, reliability problems faded away slowly. The M16 evolved from a light select-fire (semi-auto/auto) to the M16A2 which included a steel barrel, more rifle twist for increased accuracy and velocity, and three-round burst instead of automatic which although sounds worse, troops prefer three-round burst over automatic any day. The most recent addition to the armory was the M16A3(Auto)/A4(Three-Round Burst) which includes a removable carrying handle with a rail system on top of the reciever to mount any optic that accepts standard rails. The M16A4 also includes the KAC M5 rail system which allows you to mount lasers, flash lights, vertical grips, etc., allowing the M16 to be more of a modular weapon for each soldier.
The U.S. Marine single handed took down a platoon of insurgents with his M-16.
The most reliable assault rifle in the world.
Just kiddin' xD.
Darn... It jammed again... Friggin M16...
The M16 is the standard issue assault rifle for the US military.
Manufactured by Colt, the M16 series fire the 5.56x45mm NATO round, which is accurate but lacks stopping power. It comes in safety, single, and 3-round burst trigger groups (except for the M16A3 which is automatic.) Auto fire was not used as it was deemed a waste of ammunition (and it usually is).
The original M16 was notoriously unreliable, due to low-quality ammunition, nagging issues with the ammunition feed, and the fact that the weapon was advertised as 'maintenence-free' (lol). The M16A1 introduced the foward assist, which was used to clear the front section of the gun in the event of a jam.
After Vietnam, new ammunition was developed, which required a modification to the rifling. This, along with other changes, created the M16A2.
Later, the M16A4 was adopted, featuring (among other things) full modding capability with Picatinny rails, which were already a feature on the M4A1.
Contary to popular belief, as long as you keep them clean the newer models of the M16 don't jam all that often. Also, unlike what someone else claimed, a good buttstroke with the '16 can ruin someone's day. It's quite a sturdy weapon.
The carbine version of the M16 is the M4 (burst)/M4A1
The Marines train to shoot with the M16 up to 500 meters.
"Now I'll just take him down with a well placed burst....Oh cripes, a jam!"
The standard issue military assault rifle, fires 5.56 X 45mm round (.223) about 39 inches overall length, big brother to the M4A1. There are 4 different variations of the M16. M16A1(AKA VN), M16A2, M16A3, and M16A4(with removable carrying handle for optics)
In the Vietnam War, the congs were shot by mostly M16s
The M-16 is a "gas operated, air cooled, light weight, hand held, shoulder fired rifle capable of firing a 5.56 mm ball, tracer, dummy, blank, or plastic trainer round. It is able to fire on semi-automatic (full auto depending on version), or three round burst mode. It has a muzzle velocity of 3100 fps capable of firing rounds up to 3600 m and is effective on point targets to 550 m and on area targets up to 800 m."
In short, it is the general issue weapon of choice for all branches of the United States military as well as many of the third world countries that we have so boldly entrenched ourselves into over the past 5 decades that we now call "allies". It is accurate only in the hands of someone who knows how to use it... as with ALL firearms. It is not necesarily heavy but is quite awkward and slowly becoming outdated. The M-4 should have become the general purpose weapon of choice 5 years ago.
Little known fact - the M-16 was not designed to inflict casualties, it was designed to inflict injuries... slightly scary how cruel that is if you think about it long enough... which i have.
The M-16: It is my best friend and my worst enemy... and the only one i can rely on other than myself to get me out of this hell hole.