Does it use a proprietary buffer tube? If it does it's a no go (without serious modification) since the buffer tube on the 15-22 is molded with the lower receiver.
I don't believe it does. From what I've read, it slides over the AR Milspec/commercial buffer tube. Not 100% sure. I'm most concerned about the geometry of how it will mate up with the back of the lower receiver. I know there are quite a few differences between the 15/22 and a standard AR.
Hera Arms CQR
Linear Mode
