The original Military tan was very light with a pinkish tinge. This what what KAC made their tan as a number of years back. This was also what the original Vltor and TD colors were matched too.

I never liked that color so we spec'ed out a color matching a cardboard box and called it Magpul tan (wasn't too creative with the name that day)- This was used on the original tan magpuls and the DET-1 Stocks.

About a month later I started seeing a darker brown on some Calvery Arms items which they called Coyote Brown. I thought this was the best all round color and so I switched my tan to match about two years ago.

Recently there was a SOCOM spec'ed color called Flat Dark Earth which matched a Krylon color exactly. Anyone building items for the SCAR program for example had to build it within this spec.
The color is very close to Cav Arms Coyote Brown with just a little more gray.

As Coyote Brown is so close to the new Flat Dark Earth, Magpul will make all future Coyote items in Flat Dark Earth instead.

Hope this makes sense.

Quoted: If I am not Mistaken, TD and VLTOR match thier colors now, exactley ? (to the flat earth)

Yes, Jeff from TD sent use some of his items in the new Flat Dark Earth color which we will use for matching ours with.

Quoted: I'm holding a M93B (coyote) and a Tango Down pistol grip (dark earth) I got in the mail yesterday. The colors are indeed almost identical, except the Tango Down color is a small bit lighter and grayer.  Good enough for me.  I'll try to post pics here shortly. (Btw, the Magpul stock rocks, of course) Update -- here is a pic: i2.photobucket.com/albums/y41/boltcatch/goodshot.jpg

Yes Coyote and SOCOM Flat Dark Earth are very close. The new PRS Stocks will only be available in Flat Dark Earth. Other items will change over during production cycles during this year.