2 Brand New M&P15 Sport II FTF

[ironhead7544]

Sounds like bad feed ramps. Just a guess.

 

[Velle]

Never had a problem of any kind with mine. They do like to be run wet tho.

 

[Jsmith1]

Thankfully no problems with my new one. First day out I shot 150 rounds at 15 degrees. I had it lubed with Mobil 1.

 

[vipermd]

FTF Shipping

Just an update on the situation.

Sent my rifle in over a week ago, and S&W responds saying the RMA is going to take 5-6 weeks, not including shipping. I hate to say I'm rather regretting spending money on this brand. 66% of sport II's are malfunctioning and need to be RMA'd. If you want a self defense rifle that works out of the box, DO NOT choose Smith and Wesson. Spend a little more to get exponentially more quality. Love my M&P9, but the M&P15's have been nothing but a major dissapointment.

What shipping are you paying for? S&W does not charge for returns on firearms. Also sorry you are having problems. The MP-15 300 BO works with subsonic,and can, or supersonic with out can, or any combination. Many other companies 300 BO have problems, while none of the MP 15 in 223or 300 BO with subs, super, with or without a can have had any problems . Customer with a Sig, with Sig can will not cycle with Subs, even though there are 4 gas settings. I spoke to Sig- They stated that they did not make it to function with Subs???? Be Safe,

 

[The Norseman]

FTF

O.P. - Welcome to the Best Smith & Wesson Forum
out there.

Please keep the Updates coming. This is a very interesting
Thread.

I know this must be very unfortunate and discouraging
for you, hang in there. When I got my first AR15 and
will be my only one, even though I thought I knew
them well I studied up on them anyway.

One thing I know is the S&W AR15 sells like hot cakes
at the Range I go to. I see them shot a lot there and
never seen any problems. The only problems are
the ones shooters are making themselves.

Just the other day a guy and his wife each had one. They
never had a problem, he was shooting just plain old
civilian brand ammo off the shelve.

I see a lot of different factory AR15s at the Range
because they are the cool thing right now. I never
see the shooters fidgeting with them, all have been
reliable.

It's funny how everyone says lube them up, they only
run wet. I use very little grease and oil on my High
Standard LE factory AR15. I only shoot my Reloads
in it (thanks everyone for the empty shells).

Before the Pandemic I shot the heck out of it, never
cleaning or lubing, it always shot. Finally got bored
at home one day and cleaned it. I was amazed how
dirty it was and had kept firing, oh well.

Anyway the Best to you and your Endeavors. Keep
us Updated.

 

[Buckshot Barry]

I had a Colt MT6601 that I did not clean the chamber before firing the very first round and the case stuck.

I now always thoroughly clean the chamber on new AR's before firing including my Sport II that has ran flawlessly.

A .22 patch won't do it, you need a .223 chamber mop or sell engineered method. A .38 to.45 cal pistol mop works too.

 

[noro]

OP, any follow up? Mine ran 2200 rounds before
the gas key screws broke. I could have fixed
it myself with a new bcg, but let the factory
check it out and rebuild it under warranty.

It came back in 3 weeks fully restored in function.

 

[Capcalvin]

Same Issue

Sorry for resurrecting an old thread but I just experienced the same exact thing with my brand new mp15 sport II. How long was the turn around time for your repairs? Just sent mine in today. I've heard S&W is pretty quick with their warranty repairs. I'm hoping no more than a couple weeks or is that wishful thinking? Quite bummed out about this as I am concerned with the way things are evolving in the world at the time of this reply. Hopefully I get it back in working order before I may need it if you know what I mean. Thanks for reading