Originally Posted by spartan117
Actually colt makes that rifle. The lower receiver is compatible with different calibers (7.62- 5.56-.308-6.8). The exact same lower works for all calibers. Colt didn't mention how they were managed that at shot show because they're still working on the patents. Its a pretty cool rifle.
It's not a vltor clubfoot modstock. It's a Vltor IMOD stock
The stock in Modern Warfare 3 is an IMOD, but photos from defensereview have a Clubfoot. Though it's not really the stock that makes it a CM901 - as it is obviously changeable. And assuming the OP is interested in the gun because of MW3, I meant that he would be using 7.62 sized mags.