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Colt 6921 M4 switch to Sig 556 for reliability?

This is a discussion on Colt 6921 M4 switch to Sig 556 for reliability? within the M16 AR15 forums, part of the Rifle Forum category; I am looking for a rifle to use for diaster situations. I want it to be reliable enough to go bang every time. It doesnt ...


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Old July 10th, 2010, 05:06 PM   #1
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Colt 6921 M4 switch to Sig 556 for reliability?

I am looking for a rifle to use for diaster situations. I want it to be reliable enough to go bang every time. It doesnt matter if I can pick flys off at 10 zillion miles if it doesnt feed. I know everything needs to get cleaned but want a weapons system that is as reliable as possible.

I respect the M1A as a piece of history and it will allways have a place in my collection. Haha have to after the ammount of CMI mags I bought :-) The purpose of this thread is to find a rifle that will be dead nuts reliable while not losing accuracy.

I started with an AK47 but am unimpressed with its suppresed capability and 300 yard range.
I currently use a Colt 6921 as a SHTF rifle. I am considering the switch to a Sig 556 Classic or Swat full size model. How close is the Sig 556 reliability to that of an AK47? How close is the accuracy potential and effective range compared to that of a Milspec M4 with the same shooters behind both rifles?

I am considering switching from an M1A to a Fal based on reliability reasons. I orginally went with the M1A based on the amazing acuracy. I bought an M1A standard and now am either getting a DSA FAL or a M1A match.

How close is the reliability of the DSA FAL to the Ak 47? How much more reliable is the FAL and M1A?

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Old July 10th, 2010, 05:29 PM   #2
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Quote:
Originally Posted by alfred10 View Post
I am looking for a rifle to use for diaster situations. I want it to be reliable enough to go bang every time. It doesnt matter if I can pick flys off at 10 zillion miles if it doesnt feed. I know everything needs to get cleaned but want a weapons system that is as reliable as possible.
M98 Mauser.

Seriously, I'm not trying to be a smart aleck, but the way you laid out your requirements makes me wonder if maybe you have a little tunnel vision on autoloaders. No autoloader will ever be dead nuts reliable under all circumstances, but a properly set up 98 Mauser comes close.

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Old July 10th, 2010, 05:40 PM   #3
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Reliability? Stick with the Colt. Mine are no fails, and if they do have issues....

Colts are easy to learn and fix
Billions of parts available for a song
In the unlikely event that doom and gloom arrives, what will the most available military weapon in the US be? M16 and M4s, and your accessories and training will fit them.

Sigs are front heavy...They're ok, but I'm stickin with my CAR..All the BS you hear about how the "M16 almost got me killed" is 40+ year old issues..I reckon since most of the free world uses M16s and varients that they've worked the Robert McNamarra bugs out of the system..LONG AGO...

I had one old green label Colt CAR Govt. Model go at least 20,000 rounds before the stock latch broke, probably another 10k before it shot reliably, but not as accurate as I like. It never broke...The new Colts are good stuff, IMHO.

My advice, get a good tube fed 22 lr, and avoid all conflict should such an unlikely event arise. Look at it this way, if it would occur, they'll be neat stuff laying around everywhere.

FALs are not the greatest sand rifles, AKs are plain crude and not very accurate as an all arounder. An M1A Bush (18-181/2 inch) rifle is a superb all arounder, and easily placed in a folder for transport. Whatever you buy, remember that you will need a rifle that you will be able to service, and that will be an AR...M14, AK, SIG, Galil, FAL, and such would be more difficult to scrounge parts. Remember, email orders and factory warranties would cease to exist, etc...


Good luck with your decision.

Frankly, I don't buy into the gloom and doom stuff, but.....

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Old July 10th, 2010, 06:26 PM   #4
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Originally Posted by 2336USMC View Post
M98 Mauser.

Seriously, I'm not trying to be a smart aleck, but the way you laid out your requirements makes me wonder if maybe you have a little tunnel vision on autoloaders. No autoloader will ever be dead nuts reliable under all circumstances, but a properly set up 98 Mauser comes close.
Never rulled out a bolt gun. I was going to get an auto loader b.c I am more likly to find cleaning supplies and need semi auto than to be in alaska surrounded by polar bears with ak's. Is the mauser more reliable than a mosin?

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Old July 10th, 2010, 07:07 PM   #5
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I have limited experience with mosins, so I can't really make that call from my own experience.

The M98 Mauser is pretty much the world standard for the reliable firearm IMHO. If there's another gun out there that would be considered more reliable I have no idea what it would be. Controlled round feed that works sideways or upside down, a huge extractor that could extract a tank out of a ditch, a firing pin that weighs about a quarter of a pound ...

I resisted for years. I was raised on the M16A1, later saw the light and converted to the M14 type, fooled around with lots of semiautos like FN49s etc... I was brainwashed that the semiauto was the only way to go. Nowadays, if it came down to the old cliche question and I lost all but 1 gun... I think I would want a 98 Mauser. .308 Winchester/7.62 NATO for ammo availability.

However, if there were mass wave attacks of feral hogs or rabid wolves or something (use your imagination) a semiauto would be good to have handy. And I LOVE me some Colt, as they say. They are high quality and they work. I stress tested my issued M16A2 to the several thousand round level without cleaning before it started to have failures to extract from a dirty chamber, remedial action by banging the butt on the ground easily cleared the stoppages, and a 3 minute cleaning put it back to 100% function.

7.62bthp makes some really excellent points. If your Sig piston breaks, where are you going to find another one? Switzerland?

So I guess to better address your original question, if I faced a situation where I needed to put maximum controlled firepower downrange against overwhelming numbers of enemy, I would choose a 5.56 autoloader and it would be a Colt AR.

If I could only have one gun for SHTF and I wanted absolute reliability and the ability to drop anything on Earth with a well placed shot or two it would be a 98 Mauser.

If I wanted a compromise between the two, it would have to be an M14.

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Old July 11th, 2010, 07:59 AM   #6
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A 6921 is a solid, dependable carbine. Pick up an extra bolt and firing pin, and the spend $$ adding to the setup if you haven't already done so.

Optic, PMAG's, weaponlight, etc.

Would I trade that for a Sig 556? No way.

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Old July 11th, 2010, 09:09 AM   #7
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It would be foolish imo to do away with your Colt.

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Old July 11th, 2010, 09:17 AM   #8
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Your backing up going from a Colt to a Sig for reliability purposes

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Old July 11th, 2010, 11:19 AM   #9
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Ahhh, the K98...Find a nice Israeli one chambered in 308/7.62 and you have one of the most accurate and reliable weapons EVER produced. Mine shoots milsurp likes it's on fire, and will embarass 99% of the shooters with high dollar semi autos. It's hard to find a more perfect rifle.

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Old July 11th, 2010, 12:12 PM   #10
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Check out LWRC!!! I have been thinking about switching to the LWRC REPR for my shtf rifle. I currently have a M1A for this.

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Old July 11th, 2010, 03:56 PM   #11
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A few thoughts. Let's for a moment entertain the Unthinkable - a broken society without any uniformed protectors around. Not a pretty thought - you are on your own, with whatever neighbors you hope you can trust.

People seem to forget the parts/resupply problem in a post emergency world. What you don't have or is not local you are not likely to get your hands on! No credit cards or phones - ammo, food and water will be the new currency.

If you have a foreign OR domestic made gun that is not in huge circulation and it breaks, forget it - spares will be unavailable with the world gone mad. A Colt AR IS the Gold Standard in Carbines. The SIG is too costly and nobody has parts. Another bad bet - are now several entirely (non interchangable) different Direct Gas conversions of AR/M16 platforms - and not enough of any of them in circulation that you are likely to find parts ten years from now. You got a standard military style AR or M14? Your odds on parts, magazines, etc, just got better.

Bolt guns sound great until you think about how rats run in packs - look at the street gangs we already have, multiply X 10. Multiple opponents will be the rule, not the exception. And they will want to take whatever you have managed (or had the forsight to stockpile) to keep - to include food, water, women, etc. Do you have pistols and rifles your women could use if you were necessarily absent or killed? Do they have training if you were no longer there to protect them?

If your weapon and it's ammo are in wide circulation, congratulations, you are likely to remain in business. If you have developed a neighborhood network and have a few people you could trust your family's safety to, even better.

Forget exotic stuff like 6.8MM, .50AE, etc. Sell it now and get something more useful, if you are really concerned about a world meltdown.

.22LR, 12 gauge, .30-06, .308/7.62, 5.56 even 7.62x29 and 9mm or 45ACP will be tops. .40 S&W, maybe. Handgun ammo you should not need a lot of and could stockpile for a less popular caliber, in theory. But standard is always good in a time of scarcity. Let's hope this just remains a mental exercise - but keep your powder dry! CC

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Old July 11th, 2010, 06:58 PM   #12
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Murphy has a law if you have two moving parts
one is going to break. What can you get parts for easy
and there are a lot of.....AR's....Makes good sense to
have a few spare parts......Fal kit about 400.00, spare parts
for your M-14 costly, a trigger kit, bolt assembly,all the major
parts less the receiver about 550.00 you can find AR's from
time to time about 600.00 up Just a choice. Ammo about 300.00
a thousand now for PMC 55 fmj Boise Gun Show 10 July 2010.
All .02

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Old July 12th, 2010, 09:41 AM   #13
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I have both and the SIG is easier to keep clean and has been 100% reliable.

I don't shoot my Colt very often anymore because of this.

5 minutes to clean the SIG vs 30 plus to clean the Colt.

There is also the possibility that in a prolonged SHTF scenario you may never even have to clean the SIG as it never gets dirty in the receiver. You could just pop open the gas system and wipe it down and squirt a drop of oil on the bolt carrier rail and a drop on the bolt groove and call it a day.

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Old July 12th, 2010, 10:59 AM   #14
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No way in the world Id opt for an SIG regardless of any percieved superiority to the AR.Once its broke even some simple spring thats it! the likelyhood of replacing it are pretty unlikely unless invaded by the swiss.

As far as a rat pack unless thier some hard core combat vets the first mans head that explodes from that mauser all youll see are and elbows
as the pack searches for less dangerous prey.

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Old July 13th, 2010, 03:58 PM   #15
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grndpndr, I would in general agree with your concept and most of the time it might work just that way - but there are additonal possibilities to consider.

1.) Someone is trying to feed their tribe, and you are the only visible/local source they can see to take it from. It's win or die, for both sides. And once you've killed some people's brother or Dad before their very eyes, they will stop at nothing to get even. Vengence. In this kind of situation, expect the worst, most illogical behavior humans are capable of, not the best or even the reasonable.

2.) I assume evil exists in the world - I realize that not everyone does. Evil and or demented people do their worst just because they can. I would refer you to the Manson Family and Sharon Tate's Murder - and it was just drugged up madness, not scarcity or hunger driving them.

I agree that a sane person should react that way, but this is assuming a pretty insane world. CC

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