Current US Military Rifles; Still Three Round Burst?

dreadpirate · Mar 26, 2019

I ran into someone who is telling me that most current US Military rifles are three round bursts and not full auto. Is that true? I thought we went away from the three round burst mode.

fred2207 · Mar 26, 2019

Standard issue M-16 for the USAF are 3 round burst.

Doco Overboard · Mar 26, 2019

I know someone who was carrying a FA rifle today.

Hit and Run · Mar 26, 2019

dreadpirate said:
I ran into someone who is telling me that most current US Military rifles are three round bursts and not full auto. Is that true? I thought we went away from the three round burst mode.

Been a while but last M4 issued to me in Iraq was 3rd burst in Select Fire.

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sasd18 · Mar 26, 2019

Hit and Run said:
Been a while but last M4 issued to me in Iraq was 3rd burst in Select Fire.

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M4A1 is full auto

Hit and Run · Mar 26, 2019

Elrod said:
M4A1 is full auto

Yep, and M4 was 3 rd burst.

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steves1911 · Mar 26, 2019

Been almost ten years but our m4 carbines were 3rd burst. We had a pair of gau carbines that were full auto in our armory but they were never issued and rarely fired.

usa259 · Mar 26, 2019

Always wondered if it was real, and if so, how it works?

clandestine · Mar 26, 2019

M4A1 is Safe-Semi-Auto

Bust Fire Control Packs are Mickey Mouse junk. I'm glad they moved away from it.

Nanook · Mar 26, 2019

usa259 said:
Always wondered if it was real, and if so, how it works?

Burst? Pull trigger, get three rounds expended. Reset trigger forward, pull trigger, get three rounds expended.

I suppose it's easier to count to 10 than guesstimate how many rounds are left. Probably walks a lot less for smaller folks too.

TheOriginalMexicanBob · Mar 26, 2019

Full-auto control is a matter of proper training. Replacing training with gadgetry that complicates the mechanism is not the right way to go.

Nanook · Mar 26, 2019

While not an infantry guy, I'd rather one or two guys lay suppressing fire and a couple fellas putting aimed semi rounds on target. Full auto is fun but it runs through ammo quick.

Hit and Run · Mar 26, 2019

usa259 said:
Always wondered if it was real, and if so, how it works?

Basic description

Burst system has a camming system. When select fire selected and the trigger pulled the disconnector is prevented from engaging hammer by cam on selector. When the hammer cocked again the cam rotates, on third rotation of cam it does not stop the disconnector from engaging Hammer.

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jcutonilli · Mar 26, 2019

usa259 said:
Always wondered if it was real, and if so, how it works?

Pictures generally help out better than words

https://www.thefirearmblog.com/blog/2015/05/11/how-the-m-16-3-round-burst-works/

lowoncash · Mar 26, 2019

The first 3 round burst may be less than 3 rounds and the last three round burst may be less than 3 rounds depending on whats left in the mag.

TheBert · Mar 26, 2019

TheOriginalMexicanBob said:
Full-auto control is a matter of proper training. Replacing training with gadgetry that complicates the mechanism is not the right way to go.

Fast mag dump vs. slow mag dump.

CATMdude · Mar 27, 2019

It's been awhile (14 years) but my last M4 that I was issued in the Air Force was burst. No clue what MOST in the military actually are but burst is definitely in use.

TexDefender · Mar 27, 2019

My take on it...… The three round burst and full auto have their pros and cons. Full Auto on a M-16 is not really controllable (seems to always fire up and to the left), it can suppress a point, but eats ammo like there is no tomorrow. The three round burst is more controllable, runs through ammo less. But is not as affective when engaging a fairly compact group of people as full auto, nor is as intimidating. But I believe the trend is now to go back to the full auto setting.

echo6mike · Mar 27, 2019

Silly ammo-wasting modern gimmickry, should have stuck with...

https://armyhistory.org/the-springfield-model-1873-rifle/

:party29:

ST19AG_WGreymon · Mar 27, 2019

I qualified on an M4 with 3rd burst and Aimpoint before I left for Korea. We qualified on M16A2s in basic with 3rd burst, only shot semi though.

Current US Military Rifles; Still Three Round Burst?

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