S&W M&P-15 Exploded - Page 3

buckeyeLCPL · June 28th, 2009, 03:48 AM

Doing a little bit of looking around on S&W's website, some of the M&P rifles day just 5.56 under technical specs, and some 5.56/.223. The barrel says 5.56, so that leads me to believe that the upper would be for 5.56, but I've been known to be wrong before, and honestly don't really know as much about these rifles as some other AR variants.

What does the rollmark on your lower receiver say as far as caliber?

That is the kind of damage I would expect from ammo with too much pressure. Or possibly after a squib round with the bullet stuck in the barrel (which you say you checked for). You probably won't be able to get the rifle apart at all, because the bolt is probably partially in the buffer tube's area, since it isn't seated all the way forward.

I would contact both S&W and Remington, and see what they can do to make you a satisfied customer.

SIGP250 · June 28th, 2009, 04:06 AM

This is not a usual occurrence. Since you just bought the rifile I think I would take it back to the dealer. If he tells you to send it to the manufacturer. Please send me the name of the dealer where you bought it. I have an open account with S&W and might be able to help you if your dealer is not willing.

Even If the military ammo is +P this weapon is rated, I believe most M&P 15 models are rated for the additional pressure provided that you were using the right cal. of ammo in the first place. S&W will stand behind this.There must have been burrs or a manufacturing defect. I think I would ask for them to make some arrangement with you to avoid possible legal necessity.Maybe an upgrade or a free pistol so that you don't have to hire an attorney. Not a threat, just business. Get what you can.

Lucky you did not blow you hand off. This is not good S&W needs to know about this. Save your pictures.

jwhite75 · June 28th, 2009, 12:10 PM

Def follow through and take lots of pictures....Smith should definitely take care of you on this.

edr9x23super · June 28th, 2009, 12:26 PM

If I were you, I would make absolutely sure your ammunition was factory-produced ammo; I know friends who had this happen with handguns and were denied because they used ammo they bought at a gun show, or reloaded. If you have the original box the ammo came in so lots or production runs can be traced, that helps a lot. A receipt from a dealer helps even more.

Either way, I hope it all works out for you and glad you are not hurt. Handguns going Kaboom are bad enough, but rifles are especially dangerous due to the pressures involved, and the fact that usually your face is much closer to the action.....

QKShooter · June 28th, 2009, 12:26 PM

The entire M&P Series are designated either Caliber: 5.56 mm NATO / .223 or just 5.56 mm NATO

SKU: 811000
Model: M&P15
Caliber: 5.56 mm NATO / .223
Action: Gas Operated Semi Automatic
Capacity: 30 Rounds, 5.56 mm or .223
Overall Length: 35" Extended / 32" Compacted
Stock: 6-Position Telescopic
Forend: Thermo-Set M4 Handguard
Sight Length: 14.75"
Barrel Length: 16"
Barrel Twist: 1 in 9"
Weight (No Mag): 6.74 lbs.
Trigger Pull: 7 lbs. (approx.)
Upper/Lower Material: 7075 T6 Aluminum
Barrel Material: 4140 Steel
Chromed Components: Barrel Bore, Gas Key, Bolt Carrier
Receiver and Barrel Finish: Hard Coat Black Anodized
Front Sight: Adjustable Post
Rear Sight: Adjustable Dual Aperature

BAC · June 28th, 2009, 12:49 PM

As has already been said, the vast majority of 1:9 twist barrels are not chambered for 5.56 NATO, which is why they get reamed with 5.56 NATO reamers regularly. I know Rock River Arms uses a Wylde chamber that is supposed to be a compromise between .223 and 5.56 chambers and allow the firearm to chamber and fire both safely, but I don't know the details of the Wylde chamber or who all has them on their firearms.

What the manufacturer stamps on the barrel (or receiver) and what they say on their website don't mean a thing.

-B

BamaSteve · June 28th, 2009, 01:41 PM

Quote:

Originally Posted by BAC

What the manufacturer stamps on the barrel (or receiver) and what they say on their website don't mean a thing.

-B

I have to say that I don't know a darn thing about AR-15s or rifle ammo for that matter. Will learn when I can get one for myself. But if I saw specs from a gun manufacturor that explicitly stated "Caliber: 5.56 mm NATO / .223" That would have some serious problems if the weapon couldn't really handle 5.56 NATO. Especially if they refused to fix my problem because of this. Suppose they'd be getting a call from my lawyer soon after.

BAC · June 28th, 2009, 02:41 PM

To date, I don't believe any case has found manufacturers are required to make the chambers match the markings. Consider the number of AR lower receivers marked "multi", and the several uppers that utilize normal AR lower receivers. How does one cut a chamber to be in multiple calibers, or to accept the various 6-6.8 mm offerings designed to use lowers normally marked .223 Rem or 5.56 NATO? It is very well documented that a number of big players in the AR-making game don't make their chambers in the caliber listed on their barrels and receivers. Bushmaster, DPMS, Olympic Arms, and a variety of others regularly see metal removed when 5.56 NATO reamers are used (which should, if the rifles were 5.56 NATO, take no metal at all).

Point of interest, does anyone know if RRA marks their rifles .223, 5.56, or Wylde? Does anyone know if Noveske marks their N4 stainless rifles 5.56 or Match Mod 0?

-B

tangoseal · June 28th, 2009, 05:00 PM

Quote:

Originally Posted by BAC

What the manufacturer stamps on the barrel (or receiver) and what they say on their website don't mean a thing.-B

Does colt stand behind what they say? Just making sure cause im gonna get a 6920 tomorrow afternoon.

razz · June 28th, 2009, 05:08 PM

June 28th, 2009, 03:48 AM	#21
buckeyeLCPL VIP Member Join Date: Nov 2006 Location: Somestanplace Posts: 2,985	Doing a little bit of looking around on S&W's website, some of the M&P rifles day just 5.56 under technical specs, and some 5.56/.223. The barrel says 5.56, so that leads me to believe that the upper would be for 5.56, but I've been known to be wrong before, and honestly don't really know as much about these rifles as some other AR variants. What does the rollmark on your lower receiver say as far as caliber? That is the kind of damage I would expect from ammo with too much pressure. Or possibly after a squib round with the bullet stuck in the barrel (which you say you checked for). You probably won't be able to get the rifle apart at all, because the bolt is probably partially in the buffer tube's area, since it isn't seated all the way forward. I would contact both S&W and Remington, and see what they can do to make you a satisfied customer. __________________ Fortes Fortuna Juvat We're mules lad. Mules that kill. TJR

June 28th, 2009, 04:06 AM	#22
SIGP250 Member Join Date: Jan 2009 Location: ST. LOUIS, MO Posts: 417	This is not a usual occurrence. Since you just bought the rifile I think I would take it back to the dealer. If he tells you to send it to the manufacturer. Please send me the name of the dealer where you bought it. I have an open account with S&W and might be able to help you if your dealer is not willing. Even If the military ammo is +P this weapon is rated, I believe most M&P 15 models are rated for the additional pressure provided that you were using the right cal. of ammo in the first place. S&W will stand behind this.There must have been burrs or a manufacturing defect. I think I would ask for them to make some arrangement with you to avoid possible legal necessity.Maybe an upgrade or a free pistol so that you don't have to hire an attorney. Not a threat, just business. Get what you can. Lucky you did not blow you hand off. This is not good S&W needs to know about this. Save your pictures. __________________ If you understand, things are just as they are... If you do not understand, things are just as they are.... - Zen Saying

June 28th, 2009, 12:10 PM	#23
jwhite75 VIP Member Join Date: Mar 2006 Location: West Virginia Posts: 2,304	Def follow through and take lots of pictures....Smith should definitely take care of you on this. __________________ Friends don't let friends be MALL NINJAS. "May God have mercy on my enemies...because I won't." -Gen. George S. Patton.

June 28th, 2009, 12:26 PM	#24
edr9x23super Distinguished Member Join Date: Jun 2006 Location: Texas Posts: 1,733	If I were you, I would make absolutely sure your ammunition was factory-produced ammo; I know friends who had this happen with handguns and were denied because they used ammo they bought at a gun show, or reloaded. If you have the original box the ammo came in so lots or production runs can be traced, that helps a lot. A receipt from a dealer helps even more. Either way, I hope it all works out for you and glad you are not hurt. Handguns going Kaboom are bad enough, but rifles are especially dangerous due to the pressures involved, and the fact that usually your face is much closer to the action..... __________________ "Guard with jealous attention the public liberty. Suspect everyone who approaches that jewel. Unfortunately, nothing will preserve it but downright force. Whenever you give up that force, you are inevitably ruined". - Patrick Henry

June 28th, 2009, 12:26 PM	#25
QKShooter Assistant Administrator Join Date: Dec 2004 Location: Off Of The X Posts: 23,473	Taken Directly From The S&W WebSite The entire M&P Series are designated either Caliber: 5.56 mm NATO / .223 or just 5.56 mm NATO SKU: 811000 Model: M&P15 Caliber: 5.56 mm NATO / .223 Action: Gas Operated Semi Automatic Capacity: 30 Rounds, 5.56 mm or .223 Overall Length: 35" Extended / 32" Compacted Stock: 6-Position Telescopic Forend: Thermo-Set M4 Handguard Sight Length: 14.75" Barrel Length: 16" Barrel Twist: 1 in 9" Weight (No Mag): 6.74 lbs. Trigger Pull: 7 lbs. (approx.) Upper/Lower Material: 7075 T6 Aluminum Barrel Material: 4140 Steel Chromed Components: Barrel Bore, Gas Key, Bolt Carrier Receiver and Barrel Finish: Hard Coat Black Anodized Front Sight: Adjustable Post Rear Sight: Adjustable Dual Aperature

June 28th, 2009, 12:49 PM	#26
BAC Distinguished Member Join Date: May 2007 Location: Tampa, Florida Posts: 1,992	As has already been said, the vast majority of 1:9 twist barrels are not chambered for 5.56 NATO, which is why they get reamed with 5.56 NATO reamers regularly. I know Rock River Arms uses a Wylde chamber that is supposed to be a compromise between .223 and 5.56 chambers and allow the firearm to chamber and fire both safely, but I don't know the details of the Wylde chamber or who all has them on their firearms. What the manufacturer stamps on the barrel (or receiver) and what they say on their website don't mean a thing. -B __________________ RIP, Jeff Dorr: 1964 - July 17, 2009. You will be missed. Defensive Carry Search Tips Step 1 - Choose a subforum on right side under "Search in Forum(s)" Step 2 - Type general topic of interest in "Search by Keyword" textbox. Step 3 - Read results and refine/repeat as necessary.

June 28th, 2009, 02:41 PM	#28
BAC Distinguished Member Join Date: May 2007 Location: Tampa, Florida Posts: 1,992	To date, I don't believe any case has found manufacturers are required to make the chambers match the markings. Consider the number of AR lower receivers marked "multi", and the several uppers that utilize normal AR lower receivers. How does one cut a chamber to be in multiple calibers, or to accept the various 6-6.8 mm offerings designed to use lowers normally marked .223 Rem or 5.56 NATO? It is very well documented that a number of big players in the AR-making game don't make their chambers in the caliber listed on their barrels and receivers. Bushmaster, DPMS, Olympic Arms, and a variety of others regularly see metal removed when 5.56 NATO reamers are used (which should, if the rifles were 5.56 NATO, take no metal at all). Point of interest, does anyone know if RRA marks their rifles .223, 5.56, or Wylde? Does anyone know if Noveske marks their N4 stainless rifles 5.56 or Match Mod 0? -B __________________ RIP, Jeff Dorr: 1964 - July 17, 2009. You will be missed. Defensive Carry Search Tips Step 1 - Choose a subforum on right side under "Search in Forum(s)" Step 2 - Type general topic of interest in "Search by Keyword" textbox. Step 3 - Read results and refine/repeat as necessary.

June 28th, 2009, 05:08 PM	#30
razz Member Join Date: Jul 2007 Location: USA Posts: 152	tag

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