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Old March 1, 2013, 02:09 AM   #1
Keepin_Jeepin
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Armalite Ar-10 vs M&P Ar-10

So I have an M&P AR-10... wondering how it compares in construction too the Aramalite.

I found this free float tube, I am wondering if it will fit. I think it will, because their construction looks so similar, and I just dont think their site has been upgraded because the M&P is so new..

http://model1sales.com/index.cfm?fus...TOKEN=84026110

Having a hard time finding one that is in stock, that doesnt have rails on it. This is perfect and the price is great!
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Old March 1, 2013, 10:17 AM   #2
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AR-10 is a ArmaLite trade name. Only ArmaLite makes a AR-10, they make the AR-10A and AR-10B, different magazines.

Your "M&P AR-10" is actually called "M&P10" by Smith & Wesson. A new 7.62 on a already crowed 7.62 AR market. S&W has been slow about releasing specs on the M&P10, I don't know what fits it? Is it a DPMS clone?

Model 1 sales has been good with me. I haven't bought that much from them.
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Old March 1, 2013, 10:26 AM   #3
TacticalDefense1911
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DPMS pattern guns use a different barrel nut then Armalite pattern guns. You will need to know what pattern gun the MP10 is and you will want to contact Model 1 Sales to find out what all that FFT will fit.
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Old March 1, 2013, 10:48 AM   #4
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Personally, I'd stay away from Model1sales.

Do a Google of them to read about their history.
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Old March 1, 2013, 04:00 PM   #5
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I would recommend you wait until you have hard facts about the barrel fitment of the upper receiver, contact S&W and check if it is DPMS or Armalite compatible. I would contact the specific manufacturer of whatever free float tube you are going to use and find out if it will fit the M&P10. And if you buy one make sure whomever you get it from will take it back if it does not fit.
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Old March 1, 2013, 07:52 PM   #6
Keepin_Jeepin
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Okay, great advice thanks guys
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Old March 1, 2013, 07:56 PM   #7
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Dude, not to be a douche, but when I opened the link it says in red right beneath the item name "For Armalite AR-10 Rifles ONLY".


I'm suspecting this would not fit your M&P, but thats just a guess.
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Old March 1, 2013, 08:11 PM   #8
Keepin_Jeepin
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In my first post

"I just dont think their site has been upgraded because the M&P is so new.."

The M&P10 is new this year after the SHOT show. Its modeled after one of the other AR-10s just dont know what one yet.

If its modeled after the armalite it would fit. Maybe its not and their site is accurate still though. IDK
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Old March 1, 2013, 08:58 PM   #9
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Quote:
Model : M&P10

Caliber : .308 WIN/7.62 x 51

Action: Semi-Automatic

Capacity: 20 Rounds

Magazine Type: PMAG®

Barrel Length: 18”

Barrel Twist: 1 in 10” 5R Rifling

Trigger Pull: 6.15 LBS. +/-

Overall Length: 40.9” Extended/ 37.6” Collapsed

Stock: 6-Position CAR

Weight: 7.71 lbs.

Bolt Material: 9310 Steel

Barrel Material: 4140 Steel

Barrel Finish: Durable, Corrosion Resistant Finish

Receiver Material: 7075 T6 Aluminum

Receiver Finish: Black Type III Hard Anodized

Chromed Components: Gas Key, Bolt Carrier, Firing Pin
There's the M&P10 specs.
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Old March 2, 2013, 07:29 AM   #10
madcratebuilder
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Quote:
There's the M&P10 specs.
That doesn't say anything about the barrel nut. Being it's a SR-25 mag I would bet it's a KAC pattern (DPMS).


Quote:
Originally Posted by Keepin_Jeepin
The M&P10 is new this year after the SHOT show. Its modeled after one of the other AR-10s just dont know what one yet.
"AR-10" is a particular rifle, not a group of similar rifles.

It's like calling all revolvers Smith&Wesson.
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Old March 2, 2013, 08:34 AM   #11
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It's highly possible that someone else is making that rifle for S&W and they are just putting their name on it. So find out if S&W is making the rifle or if not who is and go from there.
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Old March 2, 2013, 11:40 AM   #12
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You'd need to use SR25 pattern parts not AR-10 pattern parts for your rifle.
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Old March 2, 2013, 12:04 PM   #13
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It has a mid length gas system as well so that would need to taken into consideration.
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Old March 2, 2013, 01:37 PM   #14
Keepin_Jeepin
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So this is what I did last night. Forgive me for not thinking of this sooner, but, partially disassembled one of each. It looks like I might be able to use ar-15 stuff on this.

Please correct me if I am wrong I have never modified either type of these guns. but the handguards at the ends look to be the same. I dont know how a free float tube attaches but from what I saw it looked pretty universal







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Old March 3, 2013, 06:19 AM   #15
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Quote:
So this is what I did last night. Forgive me for not thinking of this sooner, but, partially disassembled one of each. It looks like I might be able to use ar-15 stuff on this.
There are some AR15 parts that interchange with the 7.62 AR platform. Mostly the LPK parts. The barrel nuts on the 7.62 is a larger diameter than the AR15, and while the hand guards may look the same on the outside they well have a different internal size. The barrel nuts are different with the 7.62 platform, ArmaLite or KAC (SR-25) pattern.
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Old March 3, 2013, 10:16 AM   #16
4V50 Gary
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Changes may be more than handguards.

Hopefully S&W made its M&P AR-10 compatible with AR-15 parts. Same pins, roll pins, trigger, sear, springs, buffer tubes, buffer, buffer spring, bolt & bolt carrier. Ditto with its collapsable stock and all the tools association with working on the AR.
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Old March 4, 2013, 10:47 AM   #17
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The RE and buffer/spring is a compatibility problem because of the longer bolt carrier for the 7.62. The AR15 RE/stock is useable with the correct length buffer and spring. I don't think you could use the same BCG with both 5.56 and 7.62

As far as I know all 7.62 AR's share AR15 pins/springs/fgc/safety/grip. Most have a proprietary mag release and bolt catch. Initially most used AR15 mag and bolt releases but had reliability issues. Both DPMS and ArmaLite are proprietary, and I assume LMT/KAC are too.
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