What is the rifle weapon that army / marines use in Iraq and Afgan?

They use the M-16 which is a 5.56 mm caliber automatic rifle. There is a civilian version that is semi-automatic and its called an AR-15. Unless you have a special license that is really hard to get you can’t possess or purchase automatic firearms in the United States.
M16

I believe @buster is wrong.

Marines use the M4A1 Carbine. I mean, don’t you play COD? [ source ]

Unless you’re special forces, in which case I believe standard issue is a SCAR, right?

Rainbow Six, anyone?

@andrew Oh I love your video game references :P

M16A4 is standard issue for the Marine Corps, and M4 carbines are standard issue for the Army.
I’m working on a source..

Edit: Source, and source.

@lefteh correct. Also they use the m249 SAW (machine gun), the AT4 (rocket launcher), m80 (sniper), m1 (rifle), and that is all I know of… definately more though. I doubt you can purchase anything on my list. Yet you can purchase the m4 or m16 it just will not be automatic and will not contain anymore than 20 bullets in the clip legally. You’ll have to go to a gun store that carries what you will need to compile the weapon you may be imaging. Before you eveb go you will need to obtain a buyer card from the state according to NJ law.

I will also note that the M4 carbine is the standard issue for the Air Force.

A lot of the Army guys here still carry M-16A2s but other than that they’ll have an M4 or a SAW. Air Force Security Forces (cops) carry M4s and an M9 handgun. I carry an M-16A2, as do most of the people I work with.

As others have said, you can’t purchase them.

@StellarAirman: I’m curious, what rank are you?

@StellarAirman

Wow you gotta be kidding? You guys still use the Beretta M9??? I thought everybody got rid of it in favor of the HK USP?

Ah! As of 2007, M16/M4A1 assignment depends on rank.

“4.B. SERVICE RIFLES (M16) IN THE PAST WERE ASSIGNED TO MARINE
E5 AND BELOW. THE SERVICE RIFLE WILL STILL BE ASSIGNED THE SAME WITH
FEW EXCEPTIONS.
4.C. THE M4 CARBINE WAS PREVIOUSLY ASSIGNED ONLY TO SPECIFIC UNITS.
THE NEW ASSIGNMENT POLICY ASSIGNS THE CARBINE TO MARINE LT THROUGH
LTCOL, WO/CWO, SNCOS, NAVY E5 AND BELOW, AND LIMITED EQUIPMENT
VEHICLE OPERATORS.” From here via wiki.

PS

Here in Nevada pretty much everything is legal. You can even get the SOCOM/SEAL HK MP5SD3 here if you’re willing to shell out 15 to 18 Grand.

A lot of tourist-targeted “rental ranges” here carry all sorts of ARs, carbines and other assorted “sprayers”.

I think we must be one of the most “liberal” states when it comes to attack rifles.

and lastly PPS

The entire Army 82nd Airborne division and all Ranger units carry M4-A Carbines regardless of rank.

@lefteh, I’m an E-3 (Airman 1st Class).

@TaoSan yeah they still use an M9. Officers carry an M9 as well. I could, had to qualify on it before my deployment but it’s just extra weight.

@StellarAirman

Wow. I used to carry one when I was active duty USCG up until ‘01. They’ve switched to HK now. Was nice to have 16 rounds, other than that I think the M9/F92 was always quite overrated.

Isn’t it time we gave up the guns boys and girls and tried some diplomacy?
Next thing you know we will be looking for those nasty WOMD again, and look where that got you…
I’d hate to see Afghanistan turn into another Vietnam. It saddens me to see all the pictures of dead us service men and women shown on TV and their names getting read out.
And lets not forget the thousands maimed and injured who get home and have to try and put their lives together again.
There has to be a better way.

America’s gun laws are frightening. I believe they summed it up with delicious irony in Team America.

What would you do
If you were asked to give up your dreams for freedom
What would you do
If asked to make the ultimate sacrifice

Would you think about all them people
Who gave up everything they had.
Would you think about all them War Vets
And would you start to feel bad

Freedom isn’t free
It costs folks like you and me
And if we don’t all chip in
We’ll never pay that bill
Freedom isn’t free
No, there’s a hefty fuckin’ fee.
And if you don’t throw in your buck ‘o five
Who will?

What would you do
If someone told you to fight for freedom.
Would you answer the call
Or run away like a little pussy
‘Cause the only reason that you’re here.
Is ‘cause folks died for you in the past
So maybe now it’s your turn
To die kicking some ass

Freedom isn’t free
It costs folks like you and me
And if we don’t all chip in
We’ll never pay that bill
Freedom isn’t free
Now there’s a have to hook’in fee
And if you don’t throw in your buck ‘o five
Who will?

You don’t throw in your buck ‘o five. Who will?
Oooh buck ‘o five
Freedom costs a buck ‘o five

the marines use an m16 doesnt have to be an m16a1 i think that is a version that is only 3 burst. but the weapons they use in the field can either be set to semi auto, 3 burst, or full auto. Using mostly 3 burst in the field unless clearing rooms or in close quarters. But i have heard from my friend who has been accepted to westpoint this year and is going there this summer that the army is replacing the m16 with the m4 carbine, since it has less recoil. So im guessing the army uses the m16 also since COD is marines. There is a difference a lot of people dont seem to understand that.. the army is the army and the marines are basically the army of the navy..

But it is possible to purchase fully automatic weapons in the US you just have to have special licenses and the such and do things like make extra sure they dont get stolen!