All very beautiful rifles...wow.
Converting m16's/m4's into sr-25's seems like a cool idea, but i've done the math, and you're way better off selling ure m16/m4 and buying a true sr-25 then upgrading that.
*sigh* so many nights I've sat with my calculator going from site to site thinking of ways to convert my m4 for the best price, yea, i pretty much have no life. If i did have one, airsoft pwned it.
but seriously, awesome rifles, +1 for the brave soul who converted his ICS. Good idea replacing all the crappy ICS GB parts with a drop in systema kit.