If you are looking into an AR check this out.


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Infidel4life11
August 4, 2012, 01:52 AM
If you are new to AR's or have questions check out this review.

http://www.shootingillustrated.com/index.php/20746/sig-sauer-m400-2/

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Quentin
August 4, 2012, 02:24 AM
Looks like SIG got it right with the M400.

YankeeFlyr
August 4, 2012, 02:39 AM
Interesting...in the shot of the lower receiver, they left metal web in there, making 2 cavities, obviating the use of a DIAS.

Hmmmm.

LJ-MosinFreak-Buck
August 4, 2012, 02:41 AM
Of course, anything with SIG has a higher price-tag, but it does incorporate features that may influence me to buy one of theirs for a first (M400) AR.

rcmodel
August 4, 2012, 02:46 AM
I think I'll let someone else be a Beta V-1.0 tester for SIG USA made stuff.

rc

TonyAngel
August 4, 2012, 03:26 AM
The "improvements" sure do look interesting. They don't tell you much in the form of specifications. I noticed that they point out that the lower receiver is of 7075 T6, but they make no mention of the upper. I wonder if this implies that the upper is made of something else. 6061, perhaps? I also wonder who's making those barrels and what they're made of. The swivel attachment points are pretty cool though.

All in all, I'm with rcmodel on this one. I've been down the road of owning one of Sig's new releases before and it's the reason that I haven't owned a Sig since then. The name Sig really meant something at one time, but these days I'm no longer willing to take it on faith.

Infidel4life11
August 4, 2012, 03:45 AM
The "improvements" sure do look interesting. They don't tell you much in the form of specifications. I noticed that they point out that the lower receiver is of 7075 T6, but they make no mention of the upper. I wonder if this implies that the upper is made of something else. 6061, perhaps? I also wonder who's making those barrels and what they're made of. The swivel attachment points are pretty cool though.

All in all, I'm with rcmodel on this one. I've been down the road of owning one of Sig's new releases before and it's the reason that I haven't owned a Sig since then. The name Sig really meant something at one time, but these days I'm no longer willing to take it on faith.
Agreed, for the price I've seen them go for I may give it a shot (headed to some gun shows this month) if I can score one for under $850 I'll bring it home and tell all of you about. Granted Sig has a few not so good pistols but I've owned a few of their products and couldn't be happier. I even bought my dad a 1911 tac-ops for father's day and that thing is amazing.

Warp
August 4, 2012, 03:47 AM
I'd rather buy a Colt, Daniel Defense, BCM or Noveske. You can slip some of those in for <$1k, and on an AR what's $100-$150 to get something you know has a very high chance of being fantastic?

As somebody else said...I'd rather not be the beta tester.

If I wanted something less expensive I'd probably buy a S&W or a PSA.

DefiantDad
August 4, 2012, 03:51 AM
Looks like this is Direct Impingement rather than a piston-based AR.

From what I understand, that would be OK if they kept it clean diligently.

Not sure if DI is more accurate, due to less moving parts.

I guess they are bucking the trend of piston ARs.

Warp
August 4, 2012, 03:53 AM
Looks like this is Direct Impingement rather than a piston-based AR.

From what I understand, that would be OK if they kept it clean diligently.

Not sure if DI is more accurate, due to less moving parts.

I guess they are bucking the trend of piston ARs.

What trend?

DI is good, and what the rifle was designed for. Buy a quality rifle, use decent ammo, use good mags, keep it lubed, and it should serve you well.

DefiantDad
August 4, 2012, 03:58 AM
A couple years back I was talking to an Iraq vet who told me the military was all switching to piston. And then I see all the piston guns coming out. That's all my opinion is based on. Mine is a long piston PWS.

12131
August 4, 2012, 04:00 AM
I guess they are bucking the trend of piston ARs.
They are bucking nothing. They came out with the 516, which is a piston AR, before this one.
Besides, there's nothing so special about this M400. As said above, leave it to the beta testers. A DD, BCM, or Colt basic AR would be a better choice.

Warp
August 4, 2012, 04:01 AM
A couple years back I was talking to an Iraq vet who told me the military was all switching to piston.

...and when did that happen/will that happen...?



And then I see all the piston guns coming out. That's all my opinion is based on. Mine is a long piston PWS.

DI is still certainly the most common and the most popular, and if you are going to base your opinion on something one person told you was going to happen...two years ago...might be a good idea to do a follow-up and see if there was any substance to it.

Infidel4life11
August 4, 2012, 04:03 AM
I enjoy the piston driven guns, DI is just simple.

DefiantDad
August 4, 2012, 04:08 AM
Mea Culpa, and I am happy to have my opinion updated and changed. Just that based on stuff I've read regarding AR actions, it was my understanding that DI is much dirtier because the gas directly blows back into the gun, while the short and long pistons don't actually let the gas directly back in.

Infidel4life11
August 4, 2012, 04:59 AM
Mea Culpa, and I am happy to have my opinion updated and changed. Just that based on stuff I've read regarding AR actions, it was my understanding that DI is much dirtier because the gas directly blows back into the gun, while the short and long pistons don't actually let the gas directly back in.
You are correct.

Infidel4life11
August 4, 2012, 05:05 AM
DI is dirtier and more to clean, pistons can be heavier. Either or both work.

justice06rr
August 4, 2012, 05:19 AM
Not bad. I do like the addition of extra little features like ambi mag release and QD attachments.

madcratebuilder
August 4, 2012, 07:40 AM
Mea Culpa, and I am happy to have my opinion updated and changed. Just that based on stuff I've read regarding AR actions, it was my understanding that DI is much dirtier because the gas directly blows back into the gun, while the short and long pistons don't actually let the gas directly back in.
With DI you occasionally clean the bolt, with piston you occasionally clean the gas block and piston. There's no free ride with a piston AR.

SpentCasing
August 4, 2012, 04:29 PM
also since there is no established standards for piston AR you are basically married to whatever company made the parts, forever.

meanmrmustard
August 4, 2012, 05:08 PM
What trend?

DI is good, and what the rifle was designed for. Buy a quality rifle, use decent ammo, use good mags, keep it lubed, and it should serve you well.
I agree. Want a piston? Buy an AK. The AR was built around DI, it's just the way things were meant to be.

68wj
August 4, 2012, 05:47 PM
From the article
Lacking many of the superfluous bells and whistles often found on new AR-15s, the SIG Sauer M400 is a straight-shooting, lightweight carbine ideal for most any application.

Fancy way of saying that even though you are paying the same price, you may still be replacing the stock, grip, and handguards. That said, it also has bells and whistles that others don't (ambi mag release and built in QD points). I wish they would have gone with mid-gas with the 16" barrel, but it is still a competitively priced rifle. Academy has one for $900, with the superfluous MagPul furniture and sight.

Infidel4life11
August 4, 2012, 11:13 PM
From the article


Fancy way of saying that even though you are paying the same price, you may still be replacing the stock, grip, and handguards. That said, it also has bells and whistles that others don't (ambi mag release and built in QD points). I wish they would have gone with mid-gas with the 16" barrel, but it is still a competitively priced rifle. Academy has one for $900, with the superfluous MagPul furniture and sight.
I agree with you on that. If I can pic one of these up I'll only be changing the hand guards

Infidel4life11
August 5, 2012, 05:34 PM
Checked a local wal mart today and the enhance version with all the Magpul stuff ran $992 with tax. I was impressed with the entire rifle.

Averageman
August 6, 2012, 12:12 AM
I have owned two Sig rifles and both were terrible performers, had poor Q/C and within 200 rounds had parts falling off them.
That was BOTH rifles, now maybe I got two lemons in a row from Sig, but my ordeal was so bad I refuse to own another.
Seriously, if someone gave me a Sig rifle, I would immeadiatly sell it to by a more reliable brand.
YMMV.

Infidel4life11
August 7, 2012, 08:27 PM
I have owned two Sig rifles and both were terrible performers, had poor Q/C and within 200 rounds had parts falling off them.
That was BOTH rifles, now maybe I got two lemons in a row from Sig, but my ordeal was so bad I refuse to own another.
Seriously, if someone gave me a Sig rifle, I would immeadiatly sell it to by a more reliable brand.
YMMV.
Which rifles were they? What came apart?

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