AR-15 peeps: looking for a recommendation on a coyote/target/varmint complete upper (something with a heavy barrel, chambered for .223). I plan to mount a Nikon Coyote Special on the gun (bought two, one will go on my Remington 700 SPS, the other is for a coyote/target/varmint super evil and deadly black rifle). I may or may not actually shoot a coyote or varmint (don't see many of those around where I live - and guns are nearly illegal in the Soviet Socialist Republic of CA any way), but I'd like to be able to at least punch out a tight group on paper at the range. Thanks.