Is it possible to make a 12.5 inch Kino style upper with an M4 barrel? Assume using a .625 inch FSB can I use an M4 barrel or will the M203 notch be a problem ?
Thanks,
Rob
Posted: 10/6/2013 1:50:39 PM EDT
[#1]
If you contour it to fit the .625 fsb, it will work.
