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  1. S

    Another MP10 with Problems

    Success!! The DPMS carbine spring was the ticket. Excellent ejection pattern at 3-5 yds, 4’clock. Fires everything i fed it. 145 to 175 grain both steel amd brass cased, from russian steel to gold medal match. Probably ran 8 different factory loads. Now, I am going to try out a JP Silent...
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    Another MP10 with Problems

    Hey guys, a quick update on my plan here, before I go pulling the upper fully apart to mess with the gas port, which pains me to even think about, I am going to try a different spring. The spring the gun came with is 13" long and has 34 coils, and from what I can tell, this is a rifle length...
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    Another MP10 with Problems

    Mine has the 18” barrel
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    Another MP10 with Problems

    Good advice sir. Mine is the 308. No I did not shoot before dissassembly, that was a mistake. I can dissassemble and inspect. If everything is clean, I will call SW. If they wont honor the warranty I will go from there.
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    Another MP10 with Problems

    Bought this MP-10 about a year ago. Stripped it down, installed SLR gas block and SLR rail. Dimpled the barrel and used gas block alignment jig so that is perfectly installed. Gun has frequent failures with FGMM 175 SMK rounds. This is my go to round, I need it to reliably function. Buffer...
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    Under Gassed Short Stroking New M&P 10 Sport Optics Ready

    Man I am having the same problem. What a pain in the *** it is about to be to tear it all down again just to measure the port, but that is exactly what I am going to do. how did you drill it out, do you have a press? I do not have one.
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    FF with Federal Gold Medal Sierra Matchking

    I am also having problems with Federal GMM 175 grain in my MP10. Weak ejection; however it is at 4:00. But its weak. And bolt is short stroking because sometimes it won't even pickup another round and I just get a click. I think my gun is under gassed or the ammo is low pressure, but for F's...
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    My Upper is .210 - Did they change?

    HI everyone, aside from uploading a picture I thought I would mention something I found in a deep corner of the internet last night about this. So throughout the internet, directions can be found on where to measure your receiver to determine if you have low profile or high profile DPMS pattern...
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    My Upper is .210 - Did they change?

    At the tang above the charging handle slot. I will take a pic tomorrow. Sent from my iPhone using Tapatalk
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    My Upper is .210 - Did they change?

    Hi folks, I just bought a new MP10 from my LGS. Prior to my purchase, I did research across the interwebs particular to the knowledge required to add a free float rail to this rifle. Everything I read indicated that the tang on this rifle is the same dimensions as a DPMS low profile receiver...
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    Issues with my 66-8 2.75"

    I did not disclose to them the smith cut it. And i dont heve the tools to measure the difference in the throat; we're talking thousandths of an inch. Cant be seen with naked eye. But anecdotally it is working as expected, so i am pleased nonetheless. Sent from my iPhone using Tapatalk
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    Issues with my 66-8 2.75"

    We are glad to help, let us know if you grab the 66. Have fun with the 60! Sent from my iPhone using Tapatalk
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    Issues with my 66-8 2.75"

    Hi Bluedot, this discussion thread is at least 2 pages long so make sure to read through the whole thing for detailed updates from me and others. But the long story short is, I sent it back to SW for warranty repair and they sent it back with replaced parts and a fixed forcing cone and i have...
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    Issues with my 66-8 2.75"

    Sure thing! And im glad to hear you resolved your accuracy issue!!! Sent from my iPhone using Tapatalk
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    Issues with my 66-8 2.75"

    Howdy Fellas, well I have an update for you. I went to the range Friday, shot a decent variety of ammo and observed the following: Overall function - Gun worked as it should. Zero blowback. Zero shavings at forcing cone. Zero light strikes. No screws backing out. Cylinder didn't bind...
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    Issues with my 66-8 2.75"

    I received the following today: Got my gun back with some paperwork. Had to stash the gun in the safe without giving it much inspection due to much activity in my house. But the Cylinder is spinning freely and the trigger pull feels right through multiple strokes. Paperwork is as follows: A...
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    Issues with my 66-8 2.75"

    Thanks for the update! Im doing my best to make sure i will be present to sign for the package. I am working from home today so i can be around. There will be 1 hr this morning at my house with no one home. Im hoping Murphy and his laws don't rule the day and cause that driver to show up then...
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    Issues with my 66-8 2.75"

    Hello everyone, I received an email today with a FedEx tracking number from Springfield, MA, so it looks like my 66 will be back in hand this Wednesday the 21st. I mailed it off on the 16th or 17th, So essentially it took just over a month to go full circle. I will report back to you guys upon...
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    Issues with my 66-8 2.75"

    Howdy Rick, I hope your theory about the folks inspecting warranty guns being more qualified is accurate! If there are problems with their items they should be fixed right the first time by a qualified professional. And I am not sure who is in charge of cutting forcing cones and crowning...
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    Issues with my 66-8 2.75"

    Howdy CDelta, Yes it sounds like they did cut a throat into the forcing cone if you are no longer experiencing blow back. At least they properly diagnosed that part. And regarding the 3 pieces of paper, one each with L and R and one blank, I believe what that represents is they hold a piece of...
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