Question regarding M&P15T buffer/spring for Magpul UBR upgrade

[sabrewulf]

I have a M&P15T and wanted to change the stock on it with the Magpul UBR (http://store.magpul.com/product/30/86) and it recommends an M4 buffer and spring for it since it doesn't come with them. Could I use the same one that came with the rifle?

On a related note, are all M&P15's milspec?

[Belmont31R]

The UBR uses an entry length tube which is compatible with carbine buffers and springs. Its basically an A2 tube shortened to carbine length.




Milspec in what way?

[sabrewulf]

The UBR uses an entry length tube which is compatible with carbine buffers and springs. Its basically an A2 tube shortened to carbine length.




Milspec in what way?

the receiver for the stock

[sabrewulf]

So I can use the stock buffer & spring then?

[Belmont31R]

So I can use the stock buffer & spring then?




Yes, and they are mil spec rec ext's....